diff --git a/src/app/app.component.html b/src/app/app.component.html
index ecd3fd34e9b0b118d65f3e512aa34467147e09a6..a95d764ec5b7c886cd6d029f08d3981329076136 100644
--- a/src/app/app.component.html
+++ b/src/app/app.component.html
@@ -1 +1 @@
-<app-main class="site"></app-main>
\ No newline at end of file
+<app-main class="site"></app-main>
diff --git a/src/app/core/components/feedback/feedback.component.scss b/src/app/core/components/feedback/feedback.component.scss
index f6b70b1330b9d4b6c3bd4203ae2dc0035e98d342..40ec4344d023dc763139a7a7ea53a0cfd73eb475 100644
--- a/src/app/core/components/feedback/feedback.component.scss
+++ b/src/app/core/components/feedback/feedback.component.scss
@@ -12,6 +12,11 @@ $length-due-to-diag-at-btn-position: calc(100vh * 0.10510423526);
 $part-of-the-button-to-hide: calc(#{$feedback-button-width} - 2rem - 35px); // width of the button the svg width plus its margin right
 $part-of-the-button-to-hide-negative: calc(-#{$feedback-button-width} + 2rem + 35px); // width of the button the svg width plus its margin right
 
+::placeholder { /* Chrome, Firefox, Opera, Safari 10.1+ */
+  color: $grey-dark-color;
+  opacity: 1; /* Firefox */
+}
+
 form {
   background-color: $grey-background-color;
   padding: 1.4rem 1.4rem 1.4rem 1.4rem;
diff --git a/src/app/core/components/main/header/header.component.html b/src/app/core/components/main/header/header.component.html
index 0b148860abae893795827c92f84133af09c4eca2..d719850c4882f05c18ef9ce33ef9d9e98f16d0a1 100644
--- a/src/app/core/components/main/header/header.component.html
+++ b/src/app/core/components/main/header/header.component.html
@@ -151,4 +151,6 @@
       </div>
     </div>
   </div>
+  <app-feedback></app-feedback>
+
 </header>
diff --git a/src/app/core/components/main/main.component.html b/src/app/core/components/main/main.component.html
index 152dd5bf942bb84ff63c611009a6dece5dbcdcbf..1d886213bc387cbabe02693d25f339b3ab3c95fb 100644
--- a/src/app/core/components/main/main.component.html
+++ b/src/app/core/components/main/main.component.html
@@ -1,6 +1,7 @@
-<a class="skipLinks" [routerLink]="['./']" onclick="event.preventDefault(); location.hash='main-content'; main-content.focus();" fragment="main-content">Aller au contenu</a>
-<a class="skipLinks" [routerLink]="['./']" fragment="research-dataset">Aller à la recherche</a>
-<a class="skipLinks" [routerLink]="['./']" fragment="site-footer">Aller au footer</a>
+<button class="skipLinks" (click)="skipToContent()" i18n="@@skipLinks.content">Go to content</button>
+<button class="skipLinks" (click)="skipToSearchBar()" i18n="@@skipLinks.search">Go to search</button>
+<button class="skipLinks" (click)="skipToFooter()" i18n="@@skipLinks.footer">Go to footer</button>
+
 <div class="grid-layout" [ngClass]="{'is-home': isHomePage, 'prevent-scroll': feedbackIsOpened || sidebarOpened }">
   <app-header class="site-header">
   </app-header>
@@ -14,8 +15,6 @@
     <a id="site-content" tabindex="-1"></a>
     <router-outlet></router-outlet>
 
-    <app-feedback></app-feedback>
-
     <app-notifications></app-notifications>
 
     <app-cookie-banner></app-cookie-banner>
diff --git a/src/app/core/components/main/main.component.scss b/src/app/core/components/main/main.component.scss
index cea1dae98af07aaf69de976a222f46183a71ef7b..fb4828fe104eac0d9a429293a780932db9e8c8e1 100644
--- a/src/app/core/components/main/main.component.scss
+++ b/src/app/core/components/main/main.component.scss
@@ -90,6 +90,7 @@
   position: absolute;
   left: -99999rem;
   z-index: 100;
+  font-size: 1rem;
 
   &:focus {
     left: 0;
diff --git a/src/app/core/components/main/main.component.ts b/src/app/core/components/main/main.component.ts
index 5a0371556e702a5df1b79e8412810674c70438a9..68025336d16749019f1abdac1d60dfa3c8e875f9 100644
--- a/src/app/core/components/main/main.component.ts
+++ b/src/app/core/components/main/main.component.ts
@@ -53,4 +53,22 @@ export class MainComponent implements OnInit, OnDestroy {
   get feedbackIsOpened() {
     return this._appStateService.feedbackOpened;
   }
+
+  public skipToContent() {
+    setTimeout(() => {
+      document.getElementById('site-content').focus();
+    });
+  }
+
+  public skipToSearchBar() {
+    setTimeout(() => {
+      document.getElementById('research-dataset').focus();
+    });
+  }
+
+  public skipToFooter() {
+    setTimeout(() => {
+      document.getElementById('site-footer').focus();
+    });
+  }
 }
diff --git a/src/app/dataset-detail/components/dataset-api/resources-queryable/resources-queryable.component.html b/src/app/dataset-detail/components/dataset-api/resources-queryable/resources-queryable.component.html
index d7759bf2c47f311e3ad949b61a741c70bd65ff3d..74a3ea93d0de08477dae85aec84dc91472eb49ce 100644
--- a/src/app/dataset-detail/components/dataset-api/resources-queryable/resources-queryable.component.html
+++ b/src/app/dataset-detail/components/dataset-api/resources-queryable/resources-queryable.component.html
@@ -1,7 +1,7 @@
 <div class="columns resources">
   <div class="column resources-list">
     <div class="resource" *ngFor="let resource of resources" [ngClass]="{'is-active': this.selectedApis[resource.id]}">
-      <div class="resource-title is-mobile" (click)="updateSelectedResource(resource.id)"
+      <button class="resource-title is-mobile" (click)="updateSelectedResource(resource.id)"
         [ngClass]="{'is-active': this.selectedApis[resource.id]}">
         <div class="resource-icon">
           <svg xmlns="http://www.w3.org/2000/svg" id="chevron" viewBox="0 0 15 9">
@@ -31,7 +31,7 @@
             </ng-container>
           </div>
         </div>
-      </div>
+      </button>
 
 
       <div class="resource-query column is-12" *ngIf="this.selectedApis[resource.id]">
@@ -40,4 +40,4 @@
       </div>
     </div>
   </div>
-</div>
\ No newline at end of file
+</div>
diff --git a/src/app/dataset-detail/components/dataset-api/resources-queryable/resources-queryable.component.scss b/src/app/dataset-detail/components/dataset-api/resources-queryable/resources-queryable.component.scss
index f7bf3fab464e02d995ee4ac2130b1adb45e3fb50..ee549f2fd9b2804d32b257dfda3dfd71496f4a41 100644
--- a/src/app/dataset-detail/components/dataset-api/resources-queryable/resources-queryable.component.scss
+++ b/src/app/dataset-detail/components/dataset-api/resources-queryable/resources-queryable.component.scss
@@ -54,6 +54,10 @@
   display: flex;
   align-items: center;
   cursor: pointer;
+  border: none;
+  padding: 0;
+  background-color: transparent;
+  text-align: left;
 }
 
 .resource-information {
diff --git a/src/app/dataset-detail/components/dataset-detail/dataset-detail.component.html b/src/app/dataset-detail/components/dataset-detail/dataset-detail.component.html
index 3ae5c3f981d243e3a2bc44afa1f5fa112739bf79..2879298e5bf0ac9495329aef0b114dca9beaa226 100644
--- a/src/app/dataset-detail/components/dataset-detail/dataset-detail.component.html
+++ b/src/app/dataset-detail/components/dataset-detail/dataset-detail.component.html
@@ -7,7 +7,7 @@
     <ul class="navigation-tabs">
       <li [routerLinkActive]="'is-active'" *ngIf="hasTable || hasMap">
         <a (click)="setPosition()" [routerLink]="[AppRoutes.data.uri]" class="tab-link">
-          <svg class="tab-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 38 32">
+          <svg class="tab-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 38 32" aria-hidden="true">
             <path class="primary"
               d="M19 0L4.5 6.4v19.4L19 32l14.5-6.4V6.4L19 0zm13.5 24.9l-13 5.7-.5.3-13.5-5.8v-18l13.5-6 13.1 5.8L19 13l.5.2v.6l13-6.1v17.2z" />
             <path class="secondary" d="M19 30.9l.5-.2V13.2L5.9 6.9l-.4.2v.7l13 6.1v16.8z" />
@@ -24,7 +24,7 @@
       </li>
       <li [routerLinkActive]="'is-active'">
         <a (click)="setPosition()" [routerLink]="[AppRoutes.info.uri]" class="tab-link">
-          <svg class="tab-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 37 37">
+          <svg class="tab-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 37 37" aria-hidden="true">
             <g id="picto_x5F_info">
               <path d="M19 15.6c.3 0 .5.2.5.6V25c0 .3-.2.6-.5.6s-.5-.2-.5-.6v-8.9c0-.3.2-.5.5-.5z" class="secondary" />
               <circle cx="19" cy="12" r=".5" class="secondary" />
@@ -33,7 +33,7 @@
                 class="primary" />
             </g>
           </svg>
-         
+
           <div class="tab-text-wrapper">
             <div>
               <span class="tab-title tab-title-long" i18n="@@dataset.detail.infoTab">Information</span>
@@ -49,7 +49,7 @@
       </li>
       <li [routerLinkActive]="'is-active'" *ngIf="datasetFormatsList">
         <a (click)="setPosition()" [routerLink]="[AppRoutes.downloads.uri]" class="tab-link">
-      <svg class="tab-icon" xmlns="http://www.w3.org/2000/svg" data-name="Calque 1" viewBox="0 0 38 32">
+      <svg class="tab-icon" xmlns="http://www.w3.org/2000/svg" data-name="Calque 1" viewBox="0 0 38 32" aria-hidden="true">
         <path class="primary"
           d="M32.515 30H4.5a.5.5 0 01-.5-.5v-7.485a.5.5 0 011 0V29h27.015v-6.985a.5.5 0 011 0V29.5a.5.5 0 01-.5.5z" />
         <path class="secondary"
@@ -68,7 +68,7 @@
       </li>
       <li [routerLinkActive]="'is-active'" *ngIf="datasetServicesList.length > 0">
         <a (click)="setPosition()" [routerLink]="[AppRoutes.resources.uri]" class="tab-link">
-         <svg class="tab-icon" xmlns="http://www.w3.org/2000/svg" data-name="Calque 1" viewBox="0 0 38 32">
+         <svg class="tab-icon" xmlns="http://www.w3.org/2000/svg" data-name="Calque 1" viewBox="0 0 38 32" aria-hidden="true">
            <path class="secondary"
              d="M12.841 22.076l-8.889-5.484 8.889-5.485a.5.5 0 10-.526-.85l-9.578 5.91-.011.01a.616.616 0 00-.075.07.478.478 0 00-.065.07s-.009.007-.012.012a.489.489 0 00-.026.073.411.411 0 00-.035.094.466.466 0 000 .1.55.55 0 000 .091.456.456 0 00.038.1.412.412 0 00.024.067l.01.01a.5.5 0 00.153.154l9.578 5.91a.5.5 0 00.526-.852z" />
            <path class="primary"
@@ -87,7 +87,7 @@
       </li>
       <li [routerLinkActive]="'is-active'">
         <a (click)="setPosition()" [routerLink]="[AppRoutes.dataReuses.uri]" class="tab-link">
-          <svg class="tab-icon" viewBox="0 0 38 32" fill="none" xmlns="http://www.w3.org/2000/svg">
+          <svg class="tab-icon" viewBox="0 0 38 32" fill="none" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
             <path class="primary" fill-rule="evenodd" clip-rule="evenodd" d="M5 6.286L19.455 0 33.91 6.285V25.14l-14.455 6.284L5 25.14V6.286zm27.59.516l-6.484-2.82.002.005-5.362 2.264-1.229-.567 5.328-2.25-5.39-2.344-5.423 2.358 5.4 2.218-1.24.572-5.33-2.189.046-.112-6.59 2.866 5.494 2.38-.527.244v.619L6 7.754v7.874l5.285 2.485v1.055l1 .423v7.626l6.541 2.844v-7.703l.63.267.37-.157v7.7h-.007l.006.005 6.543-2.845V19.7l1.257-.532v-1.086l5.285-2.46V7.753l-5.285 2.286v-.613l-.532-.246 5.497-2.378zm.32 9.923l-5.542 2.58v7.588l5.542-2.41v-7.758zM11.285 26.782v-7.564L6 16.733v7.752l5.285 2.297z" fill="#464A57"/>
             <path class="secondary" fill-rule="evenodd" clip-rule="evenodd" d="M11.285 19.17V9.427l8.17-3.771 8.17 3.77v9.742l-8.17 3.457-8.17-3.457v.002zm1.75-9.45l6.42-2.962 6.45 2.976-6.274 2.836h-.349l-6.247-2.85zm-.75.758v8.029l6.541 2.767V13.46l-6.54-2.983zm7.541 10.905l6.8-2.877v-8l-6.8 3.073v7.804z" fill="#DA322F"/>
           </svg>
@@ -107,4 +107,4 @@
   <div class="details-container">
     <router-outlet></router-outlet>
   </div>
-</div>
\ No newline at end of file
+</div>
diff --git a/src/app/dataset-detail/components/dataset-downloads/resource-download-item/resource-download-item/resource-download-item.component.html b/src/app/dataset-detail/components/dataset-downloads/resource-download-item/resource-download-item/resource-download-item.component.html
index 8119b62bd5f74bb13c3f96951852252c32e2930a..cea921bd676e4f651dcc0803e894c65d3e0de861 100644
--- a/src/app/dataset-detail/components/dataset-downloads/resource-download-item/resource-download-item/resource-download-item.component.html
+++ b/src/app/dataset-detail/components/dataset-downloads/resource-download-item/resource-download-item/resource-download-item.component.html
@@ -27,12 +27,12 @@
      </div>
 
      <div class="right-buttons">
-       <div *ngIf="format && ((format.isCuttable && inseeLabel) || format.isProjectable)"
+       <button *ngIf="format && ((format.isCuttable && inseeLabel) || format.isProjectable)"
        class="options-icon is-hidden-mobile" [ngClass]="{'is-open': isOptionOpen}"
        (click)="isOptionOpen = !isOptionOpen">
 
          <svg version="1.1" id="Calque_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
-           x="0px" y="0px" viewBox="0 0 44 44" style="enable-background:new 0 0 44 44;" xml:space="preserve">
+           x="0px" y="0px" viewBox="0 0 44 44" style="enable-background:new 0 0 44 44;" xml:space="preserve" aria-hidden="true">
            <style type="text/css">
              .st0 {
                fill: none;
@@ -51,7 +51,8 @@
 	c0.1,0.1,0.3,0.3,0.5,0.3c0.2,0.1,0.4,0.1,0.6,0.1c0.2,0,0.8,0,1.1-0.5l1.7-1.7c0.1-0.1,0.3-0.3,0.3-0.5c0.1-0.2,0.1-0.4,0.1-0.6
 	c0-0.2,0-0.8-0.5-1.1l-0.5-0.5c0.2-0.4,0.4-0.9,0.5-1.3h0.8C32.3,24.9,33,24.2,33,23.4z" />
          </svg>
-       </div>
+         <span class="sr-only">Options</span>
+       </button>
 
        <app-download-button [url]="queryableUrl" [fileName]="fileName">
        </app-download-button>
@@ -136,4 +137,4 @@
        </div>
      </div>
    </div>
- </div>
\ No newline at end of file
+ </div>
diff --git a/src/app/dataset-detail/components/dataset-downloads/resource-download-item/resource-download-item/resource-download-item.component.scss b/src/app/dataset-detail/components/dataset-downloads/resource-download-item/resource-download-item/resource-download-item.component.scss
index b4f9bb3f8bc23a8a73f2edab7c25d93ad5044f41..f03ab9f9230ef85b7bade01351acb808dbb357e5 100644
--- a/src/app/dataset-detail/components/dataset-downloads/resource-download-item/resource-download-item/resource-download-item.component.scss
+++ b/src/app/dataset-detail/components/dataset-downloads/resource-download-item/resource-download-item/resource-download-item.component.scss
@@ -95,6 +95,8 @@
   width: 2.75rem;
   height: 2.75rem;
   margin-right: 0.5rem;
+  background-color: transparent;
+  padding: 0;
 
   &:hover {
     cursor: pointer;
@@ -127,7 +129,7 @@
   }
 }
 
-// Mobile: dropdown displays at 100%. 
+// Mobile: dropdown displays at 100%.
 .dropdown,
 .dropdown-trigger,
 .dropdown-trigger button,
diff --git a/src/app/dataset-detail/components/dataset-info/dataset-info.component.html b/src/app/dataset-detail/components/dataset-info/dataset-info.component.html
index 1d3aff25b940ccf5b069e83e0c8e2d874fa49ce6..dc8308f72fbdde00bd2883ace39f28c65c8cc071 100644
--- a/src/app/dataset-detail/components/dataset-info/dataset-info.component.html
+++ b/src/app/dataset-detail/components/dataset-info/dataset-info.component.html
@@ -46,7 +46,7 @@
       </span>
       <div class="related-dataset">
         <div class="related-dataset-item">
-          <img [src]="parent.imageUrl || './assets/img/vignette-collection.png'" alt="dataset parent thumbnail image"
+          <img [src]="parent.imageUrl || './assets/img/vignette-collection.png'" alt="" aria-hidden="true"
             onerror="this.onerror=null;this.src='./assets/img/vignette-collection.png';this.alt='Default image'">
           <a class="link-without-decoration"
             [routerLink]="['/', AppRoutes.datasets.uri, parent.slug]">{{parent.title}}</a>
@@ -59,7 +59,7 @@
       </span>
       <div class="related-dataset">
         <div class="related-dataset-item" *ngFor="let child of children">
-          <img [src]="child.imageUrl || './assets/img/vignette-data.png'" alt="dataset children thumbnail image"
+          <img [src]="child.imageUrl || './assets/img/vignette-data.png'" alt="" aria-hidden="true"
             onerror="this.onerror=null;this.src='./assets/img/vignette-data.png';this.alt='Default image'">
           <a class="link-without-decoration"
             [routerLink]="['/', AppRoutes.datasets.uri, child.slug]">{{child.title}}</a>
@@ -82,7 +82,7 @@
         <div class="column is-narrow">
           <div class="geo-thumbnail">
             <ng-container *ngIf="metadata.image;else noImage">
-              <img [src]="metadata.image.url" alt="Image du Dataset" (error)="setBackupImage()">
+              <img [src]="metadata.image.url" alt="" aria-hidden="true" (error)="setBackupImage()">
             </ng-container>
             <ng-template #noImage>
               <img src="./assets/img/vignette-data-geo.png" alt="No Image Dataset">
diff --git a/src/app/dataset-detail/components/dataset-info/info-summary/info-summary.component.html b/src/app/dataset-detail/components/dataset-info/info-summary/info-summary.component.html
index ae769a5653792889362448e57487562eb2dc2bca..8da01224c103d0b96fec4e0877227a9d1b2005ed 100644
--- a/src/app/dataset-detail/components/dataset-info/info-summary/info-summary.component.html
+++ b/src/app/dataset-detail/components/dataset-info/info-summary/info-summary.component.html
@@ -5,7 +5,7 @@
     <div class="summary">
       <div>
         <ng-container *ngIf="summaryInfo.isOpenAccess; else lockedIconTemplate">
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18">
+          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18" aria-hidden="true">
             <path id="accees_x5F_ouvert"
               d="M13 1c-2.8 0-5 2.2-5 5v1H2C.9 7 0 7.9 0 9v6c0 1.1.9 2 2 2h10c1.1 0 2-.9 2-2V9c0-1.1-.9-2-2-2h-2V6c0-1.7 1.3-3 3-3s3 1.3 3 3c0 .6.4 1 1 1s1-.4 1-1c0-2.8-2.2-5-5-5z"
               class="greylightcolor" />
@@ -13,7 +13,7 @@
         </ng-container>
 
         <ng-template #lockedIconTemplate>
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18">
+          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18" aria-hidden="true">
             <path id="accees_x5F_ferme"
               d="M14 7V6c0-2.8-2.2-5-5-5S4 3.2 4 6v1c-1.1 0-2 .9-2 2v6c0 1.1.9 2 2 2h10c1.1 0 2-.9 2-2V9c0-1.1-.9-2-2-2zM6 6c0-1.7 1.3-3 3-3s3 1.3 3 3v1H6V6z"
               class="greylightcolor" />
@@ -22,7 +22,7 @@
         <span>{{ summaryInfo.restriction }}</span>
       </div>
       <div>
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18">
+        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18" aria-hidden="true">
           <g id="picto_x5F_publish">
             <path
               d="M16.1 1.8c-1-1-2.6-1-3.5 0l-.5-.5c-.9-.9-2.2-.9-3-.1l-3 3c-.4.4-.4 1 0 1.4l.7.7 3.7-3.7s.1 0 .3.1l.5.5-4.1 4 3.5 3.5 5.4-5.3c1-1 1-2.6 0-3.6zM6.5 7.9L2 12.4c-.5.5-.9 3.8-.9 3.8-.1.4.2.7.6.6 0 0 3.3-.4 3.8-.9l4.5-4.5-3.5-3.5z"
@@ -39,7 +39,7 @@
           {{ (summaryInfo.publicationDate | date: 'dd/MM/yyyy') || '-' }}</span>
       </div>
       <div>
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18">
+        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18" aria-hidden="true">
           <path id="picto_x5F_refresh"
             d="M12.7 5c-.5-.4-1.1-.8-1.7-1-.6-.3-1.3-.4-2-.4-1.2 0-2.4.4-3.4 1.1-.9.8-1.6 1.8-1.9 3 0 .1-.1.2-.1.2-.1 0-.1.1-.2.1H1.5c-.1 0-.2 0-.3-.1-.1-.2-.1-.3-.1-.4.2-1.2.7-2.3 1.5-3.3s1.7-1.8 2.8-2.3C6.5 1.3 7.7 1 9 1c1.1 0 2.1.2 3 .6.9.4 1.8.9 2.5 1.6L15.7 2c.2-.2.3-.2.5-.2s.4.1.5.2c.2.2.3.4.3.6v4.3c0 .2-.1.4-.2.5-.2.2-.3.2-.5.2H12c-.2 0-.4-.1-.5-.2-.2-.2-.2-.3-.2-.5s.1-.4.2-.5L12.7 5zM1.8 10.3h4.3c.2 0 .4.1.5.2.2.2.2.3.2.5s-.1.4-.2.5L5.3 13c.5.5 1.1.8 1.7 1.1.6.2 1.3.4 2 .4 1.2 0 2.4-.4 3.3-1.1 1-.8 1.6-1.8 1.9-3 0-.1.1-.2.1-.2.1-.1.2-.1.3-.1h1.8c.1 0 .2.1.3.2.1.1.1.2.1.3-.2 1.2-.7 2.3-1.5 3.3s-1.7 1.8-2.8 2.3c-1 .5-2.2.8-3.5.8-1.1 0-2.1-.2-3-.6s-1.8-.9-2.5-1.6L2.3 16c-.2.2-.3.2-.5.2s-.4-.1-.5-.2c-.2-.2-.3-.4-.3-.6v-4.3c0-.2.1-.4.2-.5.2-.2.4-.3.6-.3z"
             class="greylightcolor" />
@@ -48,7 +48,7 @@
         <span>{{ summaryInfo.updateFrequency }}</span>
       </div>
       <div>
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18">
+        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18" aria-hidden="true">
           <path id="picto_x5F_view"
             d="M17.8 8.2c-.9-1.5-2.1-2.7-3.7-3.6-1.5-.9-3.2-1.4-5.1-1.4-1.9 0-3.6.5-5.1 1.4-1.6.9-2.8 2.1-3.7 3.6-.1.3-.2.5-.2.8s.1.5.2.8c.9 1.5 2.1 2.7 3.7 3.6 1.6.9 3.3 1.4 5.1 1.4 1.9 0 3.6-.5 5.1-1.4 1.5-.9 2.8-2.1 3.7-3.6.1-.3.2-.5.2-.8s-.1-.5-.2-.8zm-8.8 5c-.8 0-1.5-.2-2.1-.6-.6-.4-1.2-.9-1.6-1.6-.4-.5-.5-1.2-.5-2s.2-1.5.6-2.1c.4-.6.9-1.2 1.6-1.5.5-.5 1.2-.6 2-.6s1.5.2 2.1.6c.6.4 1.2.9 1.5 1.5.4.6.6 1.4.6 2.1s-.2 1.5-.6 2.1c-.4.6-.9 1.2-1.5 1.6-.6.4-1.3.5-2.1.5zM12.2 9c0 .9-.3 1.7-1 2.3-.6.6-1.4.9-2.3.9s-1.7-.3-2.3-.9c-.5-.6-.8-1.4-.8-2.3 0-.5.1-1.1.4-1.5 0 .4.1.7.4 1 .3.2.6.4 1 .4s.7-.1.9-.4c.3-.3.4-.6.4-1s-.2-.7-.5-1c-.2-.2-.6-.4-.9-.4.5-.2 1-.4 1.5-.4.9 0 1.7.3 2.3 1 .6.6.9 1.4.9 2.3z"
             class="greylightcolor" />
@@ -62,7 +62,7 @@
         </ng-template>
       </div>
       <div>
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18">
+        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18" aria-hidden="true">
           <path id="picto_donne"
             d="M10 5.2V1H3.8c-.3 0-.4.1-.6.2-.1.2-.2.3-.2.6v14.5c0 .2.1.4.2.5.2.1.3.2.6.2h10.5c.2 0 .4-.1.5-.2.1-.1.2-.3.2-.5V6h-4.2c-.2 0-.4-.1-.5-.2s-.3-.3-.3-.6zm5-.4V5h-4V1h.2c.2 0 .4.1.5.2l3.1 3.1c.1.1.2.3.2.5z"
             class="greylightcolor" />
diff --git a/src/app/dataset-detail/components/dataset-reuses/dataset-reuses.component.html b/src/app/dataset-detail/components/dataset-reuses/dataset-reuses.component.html
index b33241f308403d9a1d7f19402d2aea6ac437c5d5..520deeaa7566f807a099eaa76b721b12459f077a 100644
--- a/src/app/dataset-detail/components/dataset-reuses/dataset-reuses.component.html
+++ b/src/app/dataset-detail/components/dataset-reuses/dataset-reuses.component.html
@@ -10,15 +10,15 @@
                 </div>
         </div>
         <div class="item" *ngFor="let reuse of reuses" >
-       
+
           <div class="reuse">
             <a [routerLink]="['/', AppRoutes.reuses.uri, reuse._id]">
               <div class="logo-content">
-                <img [src]="reuse.logo" [alt]="reuse.name + 'logo'">
+                <img [src]="reuse.logo" [alt]="" aria-hidden="true">
               </div>
               <span class="title">{{reuse.name}}</span>
               <p>{{reuse.creator}}</p>
-    
+
               <div class="bottom-section">
                 <span>{{ formatReusesTypes(reuse.reuseTypes) }}</span>
                 <span>
@@ -34,7 +34,7 @@
       </div>
       <p class="section-title" i18n="@@dataset.reuse.title2" *ngIf="hasRelatedPosts">News</p>
       <div class="posts-container" *ngIf="hasRelatedPosts">
-  
+
       <div class="post-item" *ngFor="let post of relatedNews">
         <a [routerLink]="['/', AppRoutes.articles.uri, post.slug]" class="link-without-decoration">
           <div class="post-image" [ngStyle]="{'background-image': 'url(' + post.content.featureImage + ') '}">
@@ -49,4 +49,4 @@
         </a>
       </div>
       </div>
-</div>
\ No newline at end of file
+</div>
diff --git a/src/app/datasets/components/filter-list/filter-detail/filter-detail.component.html b/src/app/datasets/components/filter-list/filter-detail/filter-detail.component.html
index 36ceecf6cafe13f34668ba63d863a0dd20493bab..8d8a0c745f8c0944540549a4b815d632581175be 100644
--- a/src/app/datasets/components/filter-list/filter-detail/filter-detail.component.html
+++ b/src/app/datasets/components/filter-list/filter-detail/filter-detail.component.html
@@ -5,11 +5,11 @@
 -->
 
 <aside *ngIf="filter.aggregations && filter.aggregations.length > 0" [ngClass]="{'is-active': displayFilterItems}">
-  <p class="filter-label" (click)="toggleFilterItems()">
+  <button class="filter-label" (click)="toggleFilterItems()">
     <span>{{ filter.label }}</span>
-    <img class="icon-plus-minus" src="./assets/img/minus.svg" alt="Minus icon" *ngIf="displayFilterItems">
-    <img class="icon-plus-minus" src="./assets/img/plus.svg" alt="plus icon" *ngIf="!displayFilterItems">
-  </p>
+    <img class="icon-plus-minus" src="./assets/img/minus.svg" alt="" aria-hidden="true" *ngIf="displayFilterItems">
+    <img class="icon-plus-minus" src="./assets/img/plus.svg" alt="" aria-hidden="true" *ngIf="!displayFilterItems">
+  </button>
   <ul class="filter-items" [ngClass]="{'is-active': displayFilterItems}">
     <li *ngFor="let aggregation of filter.aggregations; let i=index"
       [ngClass]="{'active': (aggregation.isActive == true) }">
@@ -86,4 +86,4 @@
 
     </li>
   </ul>
-</aside>
\ No newline at end of file
+</aside>
diff --git a/src/app/datasets/components/filter-list/filter-detail/filter-detail.component.scss b/src/app/datasets/components/filter-list/filter-detail/filter-detail.component.scss
index d71ae77109b36efed61bee6ecf2e12ea476e9c83..49b4773bc2ac0b291b8aa8480ef251d28ec8887e 100644
--- a/src/app/datasets/components/filter-list/filter-detail/filter-detail.component.scss
+++ b/src/app/datasets/components/filter-list/filter-detail/filter-detail.component.scss
@@ -17,13 +17,14 @@ aside {
 }
 
 .filter-label {
-  padding-bottom: 0.5rem;
-  padding-top: 0.5rem;
-  padding-left: 1.5rem;
+  padding: 0.5rem 0 0.5rem 1.5rem;
   display: flex;
   align-items: center;
   justify-content: space-between;
   cursor: pointer;
+  background-color: transparent;
+  border: none;
+  width: 100%;
 
   span {
     font-size: $size-5;
@@ -34,6 +35,10 @@ aside {
     height: 13px;
     width: 13px;
   }
+
+  &:hover, &:focus, &:active {
+    font-weight: 600;
+  }
 }
 
 .filter-items {
diff --git a/src/app/datasets/components/filter-list/filter-list.component.html b/src/app/datasets/components/filter-list/filter-list.component.html
index 7e436d71a09c556508eafa5b45bd53d0fdbe8561..8228e705f92ea14815f9ae9ee8e3b20e5304ca2d 100644
--- a/src/app/datasets/components/filter-list/filter-list.component.html
+++ b/src/app/datasets/components/filter-list/filter-list.component.html
@@ -1,7 +1,7 @@
 <ng-container *ngIf="filters">
   <div class="active-filters-header columns is-mobile is-vcentered is-marginless">
     <div class="filter-title is-size-7 column is-narrow is-pulled-left">
-      <span class="filter-img"><img src="./assets/img/picto_filtres.svg" alt="Picto de la section filtre"></span>
+      <span class="filter-img"><img src="./assets/img/picto_filtres.svg" aria-hidden="true" alt=""></span>
       <span class="is-uppercase has-text-weight-bold" i18n="@@global.filters">Filters</span>
     </div>
     <div class="column is-narrow is-paddingless" *ngIf="activeAggregations && activeAggregations.length > 0">
@@ -27,7 +27,7 @@
           <button class="remove-filter-btn" (click)="removeFilter(activeAgg)">
             <svg xmlns="http://www.w3.org/2000/svg" id="filtre-close" viewBox="0 0 15 15">
               <path stroke="#4668AB" fill="#4668AB" d="M13.6 12.8L8.2 7.4l5.1-5.1c.2-.2.2-.5 0-.7s-.5-.2-.7 0l-5.1 5-5.1-5.1c-.2-.2-.5-.2-.7 0s-.2.5-.1.7l5.1 5.1-5.4 5.4c-.2.2-.2.5 0 .7.1.1.2.1.4.1s.3 0 .4-.1L7.5 8l5.4 5.4c.1.1.2.1.4.1s.3 0 .4-.1c.1-.1.1-.4-.1-.6z" class="white"/>
-            </svg>            
+            </svg>
           </button>
         </div>
       </div>
diff --git a/src/app/datasets/components/results/result-dataset/result-dataset.component.html b/src/app/datasets/components/results/result-dataset/result-dataset.component.html
index 8c7e048743f6bb0fc913f6c1a1ae2fc393e30aa9..e4ab737be0fe6e3c6c5bbf988c92d4d273a90068 100644
--- a/src/app/datasets/components/results/result-dataset/result-dataset.component.html
+++ b/src/app/datasets/components/results/result-dataset/result-dataset.component.html
@@ -3,7 +3,7 @@
   <div class="columns is-marginless">
     <div class="column is-1 is-paddingless image-item is-hidden-mobile">
       <ng-container *ngIf="dataset.metadata.image;else noImage">
-        <img [src]="imageUrl" alt="Image du Dataset" (error)="backupImage()">
+        <img [src]="imageUrl" alt="" aria-hidden="true" (error)="backupImage()">
       </ng-container>
       <ng-template #noImage>
         <img [src]="imageUrl" alt="No Image Dataset">
@@ -47,4 +47,4 @@
         dataset.highlights.highlightedDescription.join('&nbsp;[...]&nbsp;') : dataset.metadata.abstractTroncated"></p>
     </div>
   </div>
-</ng-container>
\ No newline at end of file
+</ng-container>
diff --git a/src/app/datasets/components/results/results-tab-scope/results-tab-scope.component.html b/src/app/datasets/components/results/results-tab-scope/results-tab-scope.component.html
index 5c870b07c451370653f0cc1fb93355c9c134d875..949eb1ac7dc753361b0696cc878c2caa402fc44a 100644
--- a/src/app/datasets/components/results/results-tab-scope/results-tab-scope.component.html
+++ b/src/app/datasets/components/results/results-tab-scope/results-tab-scope.component.html
@@ -1,23 +1,23 @@
 <!-- Tabs -->
-<ul class="tabs-container">
-  <li (click)="changeScope(scopesResearch.all)" [ngClass]="{'is-selected': selectedScope.key === scopesResearch.all.key}"
+<div class="tabs-container">
+  <button (click)="changeScope(scopesResearch.all)" [ngClass]="{'is-selected': selectedScope.key === scopesResearch.all.key}"
       [attr.aria-current]="selectedScope.key === scopesResearch.all.key ? 'page' : undefined">
     <span class="tab-label">{{ scopesResearch.all.label }}</span>
     <span class="tab-count">{{ countResults[scopesResearch.all.key] || 0 }}</span>
-  </li>
-  <li (click)="changeScope(scopesResearch.datasets)" [ngClass]="{'is-selected': selectedScope.key === scopesResearch.datasets.key}"
+  </button>
+  <button (click)="changeScope(scopesResearch.datasets)" [ngClass]="{'is-selected': selectedScope.key === scopesResearch.datasets.key}"
       [attr.aria-current]="selectedScope.key === scopesResearch.datasets.key ? 'page' : undefined">
     <span class="tab-label">{{ scopesResearch.datasets.label }}</span>
     <span class="tab-count">{{ countResults[scopesResearch.datasets.key] || 0 }}</span>
-  </li>
-  <li (click)="changeScope(scopesResearch.services)" [ngClass]="{'is-selected': selectedScope.key === scopesResearch.services.key}"
+  </button>
+  <button (click)="changeScope(scopesResearch.services)" [ngClass]="{'is-selected': selectedScope.key === scopesResearch.services.key}"
       [attr.aria-current]="selectedScope.key === scopesResearch.services.key ? 'page' : undefined">
     <span class="tab-label">{{ scopesResearch.services.label }}</span>
     <span class="tab-count">{{ countResults[scopesResearch.services.key] || 0 }}</span>
-  </li>
-  <li (click)="changeScope(scopesResearch.post)" [ngClass]="{'is-selected': selectedScope.key === scopesResearch.post.key}"
+  </button>
+  <button (click)="changeScope(scopesResearch.post)" [ngClass]="{'is-selected': selectedScope.key === scopesResearch.post.key}"
       [attr.aria-current]="selectedScope.key === scopesResearch.post.key ? 'page' : undefined">
     <span class="tab-label">{{ scopesResearch.post.label }}</span>
     <span class="tab-count">{{ countResults[scopesResearch.post.key] || 0 }}</span>
-  </li>
-</ul>
+  </button>
+</div>
diff --git a/src/app/datasets/components/results/results-tab-scope/results-tab-scope.component.scss b/src/app/datasets/components/results/results-tab-scope/results-tab-scope.component.scss
index a88e966c8332cebb013b6ca68aaf8246422c2f4a..ee76deffcb2cb1693f2914abebc5afd7f4970c5e 100644
--- a/src/app/datasets/components/results/results-tab-scope/results-tab-scope.component.scss
+++ b/src/app/datasets/components/results/results-tab-scope/results-tab-scope.component.scss
@@ -9,7 +9,7 @@
     display: block;
   }
 
-  li {
+  button {
     display: inline-block;
     padding-right: 2rem;
     padding-bottom: 0.3125rem;
@@ -17,6 +17,9 @@
     position: relative;
     margin-bottom: 1px;
     width: 100%;
+    background-color: transparent;
+    border: none;
+    text-align: left;
 
     @media screen and (min-width: $tablet) {
       width: 6rem;
@@ -24,11 +27,11 @@
     }
   }
 
-  li:last-child {
+  button:last-child {
     padding-right: 0;
   }
 
-  li > span {
+  button > span {
     display: block;
   }
 
@@ -38,7 +41,7 @@
     color: $brand-color;
   }
 
-  li:hover {
+  button:hover, button:focus, button:active {
     .tab-label {
       font-weight: 600;
     }
@@ -50,20 +53,20 @@
     color: $grey-dark-color;
   }
 
-  li.is-selected {
+  button.is-selected {
     .tab-label {
       color: $tomato-color;
       font-weight: 600;
     }
   }
 
-  li.disabled {
+  button.disabled {
     span {
       color: $grey-super-light-color;
     }
   }
 
-  li::after {
+  button::after {
     content: '';
     display: block;
     height: 2px;
@@ -73,7 +76,7 @@
     bottom: -2px;
   }
 
-  li.is-selected::after {
+  button.is-selected::after {
     transition: width 0.3s;
     width: 100%;
   }
diff --git a/src/app/datasets/components/search-bar/search-bar.component.scss b/src/app/datasets/components/search-bar/search-bar.component.scss
index 35612671609bea99984f6cbdac837de4928a776d..2716375590028d9a887af389df94ffdcb286b261 100644
--- a/src/app/datasets/components/search-bar/search-bar.component.scss
+++ b/src/app/datasets/components/search-bar/search-bar.component.scss
@@ -1,6 +1,11 @@
 @import "../../../../scss/variables.scss";
 @import "../../../../../node_modules/bulma/sass/utilities/_all.sass";
 
+::placeholder { /* Chrome, Firefox, Opera, Safari 10.1+ */
+  color: $grey-dark-color;
+  opacity: 1; /* Firefox */
+}
+
 .row {
   padding-right: 1.875rem;
   padding-left: 1.875rem;
diff --git a/src/app/editorialisation/components/reuse-detail/reuse-detail.component.html b/src/app/editorialisation/components/reuse-detail/reuse-detail.component.html
index 77d2b29163ff1b17674ede9cdac66726e9b0154b..809dec79015f526b004aedffab36bd8681fbaf8b 100644
--- a/src/app/editorialisation/components/reuse-detail/reuse-detail.component.html
+++ b/src/app/editorialisation/components/reuse-detail/reuse-detail.component.html
@@ -2,7 +2,7 @@
 
   <div class="page-header-container">
     <app-page-header [pageInfo]="pageHeaderInfo"></app-page-header>
-    <img class="logo" [src]="reuse.logo" [alt]="reuse.name + 'logo'">
+    <img class="logo" [src]="reuse.logo" [alt]="" aria-hidden="true">
   </div>
 
   <div class="page-content">
@@ -32,4 +32,4 @@
     </div>
 
   </div>
-</section>
\ No newline at end of file
+</section>
diff --git a/src/app/editorialisation/components/reuses-list/reuses-list.component.html b/src/app/editorialisation/components/reuses-list/reuses-list.component.html
index 4414745aeb12f98942b4daa4091d0f4c345eaeab..693f762af4636fb33b3460221b7d860ac9a3660a 100644
--- a/src/app/editorialisation/components/reuses-list/reuses-list.component.html
+++ b/src/app/editorialisation/components/reuses-list/reuses-list.component.html
@@ -18,7 +18,7 @@
       <div class="reuse">
         <a [routerLink]="['/', AppRoutes.reuses.uri, reuse._id]">
           <div class="logo-content">
-            <img [src]="reuse.logo" [alt]="reuse.name + 'logo'">
+            <img [src]="reuse.logo" [alt]="" aria-hidden="true">
           </div>
           <span class="title">{{reuse.name}}</span>
           <p>{{reuse.creator}}</p>
@@ -37,4 +37,4 @@
     </div>
   </div>
 
-</div>
\ No newline at end of file
+</div>
diff --git a/src/app/shared/components/download-button/download-button.component.html b/src/app/shared/components/download-button/download-button.component.html
index 856f6068e7e67045de8d13c83f4fdfd54ca36e3b..2e4d0506d5a879ff364087f2bb676540ad8a21a7 100644
--- a/src/app/shared/components/download-button/download-button.component.html
+++ b/src/app/shared/components/download-button/download-button.component.html
@@ -1,32 +1,30 @@
-<div class="download-button" [attr.data-tooltip]="loading ? abortMessage : null">
+<div class="download-button" [attr.data-tooltip]="loading ? abortMessage : downloadMessage">
 
-  <div class="resource-icon-download" (click)="download()" *ngIf="!loading">
-    <a [attr.data-tooltip]="downloadMessage">
-
-      <svg version="1.1" id="Calque_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
-        x="0px" y="0px" viewBox="0 0 44 44" xml:space="preserve">
+  <button class="resource-icon-download" (click)="download()" *ngIf="!loading">
+    <svg version="1.1" id="Calque_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+         x="0px" y="0px" viewBox="0 0 44 44" xml:space="preserve" aria-hidden="true">
         <g>
           <path fill="#4668AB"
-            d="M32.3,25.5H32c-0.3,0-0.7,0.3-0.7,0.7v4.6H12.7v-4.6c0-0.4-0.3-0.7-0.7-0.7h-0.3c-0.3,0-0.7,0.3-0.7,0.7v5.3
+                d="M32.3,25.5H32c-0.3,0-0.7,0.3-0.7,0.7v4.6H12.7v-4.6c0-0.4-0.3-0.7-0.7-0.7h-0.3c-0.3,0-0.7,0.3-0.7,0.7v5.3
 		v0.3c0,0.4,0.3,0.7,0.7,0.7H12h20h0.3c0.3,0,0.7-0.3,0.7-0.7v-0.3v-5.3C33,25.8,32.7,25.5,32.3,25.5z" />
           <path fill="#4668AB"
-            d="M21.3,26.9c0.1,0.1,0.3,0.2,0.3,0.2c0.1,0.1,0.3,0.1,0.3,0.1c0.1,0,0.3,0,0.3-0.1c0.2,0,0.3-0.1,0.3-0.2
+                d="M21.3,26.9c0.1,0.1,0.3,0.2,0.3,0.2c0.1,0.1,0.3,0.1,0.3,0.1c0.1,0,0.3,0,0.3-0.1c0.2,0,0.3-0.1,0.3-0.2
 		l5.9-6.1c0.2-0.3,0.2-0.6,0-0.8l-0.4-0.4c-0.2-0.3-0.6-0.3-0.8,0l-4.6,4.7V12.4c0-0.5-0.3-0.9-0.8-0.9s-0.8,0.3-0.8,0.9v11.9
 		l-4.6-4.7c-0.2-0.3-0.5-0.3-0.8,0L15.4,20c-0.2,0.3-0.2,0.6,0,0.8L21.3,26.9z" />
         </g>
       </svg>
-    </a>
-  </div>
-  <div class="resource-icon-cancel" *ngIf="loading">
+    <span class="sr-only">{{ downloadMessage }}</span>
+  </button>
+  <button class="resource-icon-cancel" *ngIf="loading">
 
-    <svg width="34" height="34" viewBox="0 0 34 34" fill="none" xmlns="http://www.w3.org/2000/svg">
+    <svg width="34" height="34" viewBox="0 0 34 34" fill="none" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
       <path fill-rule="evenodd" clip-rule="evenodd"
-        d="M17 0C18.1009 0 19.0325 0.929231 19.0325 2.02741C19.0325 3.16783 18.1009 4.05483 17 4.05483C15.8567 4.05483 14.9675 3.16783 14.9675 2.02741C14.9675 0.929231 15.8567 0 17 0ZM6.37132 4.36171C7.47224 4.36171 8.40378 5.29094 8.40378 6.38912C8.40378 7.52954 7.47224 8.41653 6.37132 8.41653C5.22807 8.41653 4.33887 7.52954 4.33887 6.38912C4.33887 5.29094 5.22807 4.36171 6.37132 4.36171ZM4.06492 17.0002C4.06492 15.902 3.13337 14.9728 2.03246 14.9728C0.8892 14.9728 0 15.902 0 17.0002C0 18.1406 0.8892 19.0276 2.03246 19.0276C3.13337 19.0276 4.06492 18.1406 4.06492 17.0002ZM6.37132 25.5838C7.47224 25.5838 8.40378 26.513 8.40378 27.6112C8.40378 28.7516 7.47224 29.6386 6.37132 29.6386C5.22807 29.6386 4.33887 28.7516 4.33887 27.6112C4.33887 26.513 5.22807 25.5838 6.37132 25.5838ZM19.0327 31.9727C19.0327 30.8745 18.1011 29.9453 17.0002 29.9453C15.857 29.9453 14.9678 30.8745 14.9678 31.9727C14.9678 33.1131 15.857 34.0001 17.0002 34.0001C18.1011 34.0001 19.0327 33.1131 19.0327 31.9727ZM27.6301 25.5838C28.731 25.5838 29.6626 26.513 29.6626 27.6112C29.6626 28.7516 28.731 29.6386 27.6301 29.6386C26.4869 29.6386 25.5977 28.7516 25.5977 27.6112C25.5977 26.513 26.4869 25.5838 27.6301 25.5838ZM34.0005 17.0002C34.0005 15.902 33.0689 14.9728 31.968 14.9728C30.8247 14.9728 29.9355 15.902 29.9355 17.0002C29.9355 18.1406 30.8247 19.0276 31.968 19.0276C33.0689 19.0276 34.0005 18.1406 34.0005 17.0002Z"
-        fill="#242B3F" />
+            d="M17 0C18.1009 0 19.0325 0.929231 19.0325 2.02741C19.0325 3.16783 18.1009 4.05483 17 4.05483C15.8567 4.05483 14.9675 3.16783 14.9675 2.02741C14.9675 0.929231 15.8567 0 17 0ZM6.37132 4.36171C7.47224 4.36171 8.40378 5.29094 8.40378 6.38912C8.40378 7.52954 7.47224 8.41653 6.37132 8.41653C5.22807 8.41653 4.33887 7.52954 4.33887 6.38912C4.33887 5.29094 5.22807 4.36171 6.37132 4.36171ZM4.06492 17.0002C4.06492 15.902 3.13337 14.9728 2.03246 14.9728C0.8892 14.9728 0 15.902 0 17.0002C0 18.1406 0.8892 19.0276 2.03246 19.0276C3.13337 19.0276 4.06492 18.1406 4.06492 17.0002ZM6.37132 25.5838C7.47224 25.5838 8.40378 26.513 8.40378 27.6112C8.40378 28.7516 7.47224 29.6386 6.37132 29.6386C5.22807 29.6386 4.33887 28.7516 4.33887 27.6112C4.33887 26.513 5.22807 25.5838 6.37132 25.5838ZM19.0327 31.9727C19.0327 30.8745 18.1011 29.9453 17.0002 29.9453C15.857 29.9453 14.9678 30.8745 14.9678 31.9727C14.9678 33.1131 15.857 34.0001 17.0002 34.0001C18.1011 34.0001 19.0327 33.1131 19.0327 31.9727ZM27.6301 25.5838C28.731 25.5838 29.6626 26.513 29.6626 27.6112C29.6626 28.7516 28.731 29.6386 27.6301 29.6386C26.4869 29.6386 25.5977 28.7516 25.5977 27.6112C25.5977 26.513 26.4869 25.5838 27.6301 25.5838ZM34.0005 17.0002C34.0005 15.902 33.0689 14.9728 31.968 14.9728C30.8247 14.9728 29.9355 15.902 29.9355 17.0002C29.9355 18.1406 30.8247 19.0276 31.968 19.0276C33.0689 19.0276 34.0005 18.1406 34.0005 17.0002Z"
+            fill="#242B3F" />
       <animateTransform attributeName="transform" type="rotate" from="0 0 0" to="360 0 0" dur="1.2s"
-        repeatCount="indefinite" />
+                        repeatCount="indefinite" />
     </svg>
 
     <img src="../../../../../../assets/img/close.svg" [alt]="abortMessage" (click)=abortDownload()>
-  </div>
-</div>
\ No newline at end of file
+  </button>
+</div>
diff --git a/src/app/shared/components/download-button/download-button.component.scss b/src/app/shared/components/download-button/download-button.component.scss
index 8e0b84084a26f2cae2ca81dc11f5408412e02d49..91c11cd5e45f035bbcb6e20c992e27a2759719d3 100644
--- a/src/app/shared/components/download-button/download-button.component.scss
+++ b/src/app/shared/components/download-button/download-button.component.scss
@@ -1,5 +1,12 @@
 @import './../../../../scss/variables.scss';
 
+.download-button {
+  button {
+    background-color: transparent;
+    padding: 0;
+  }
+}
+
 .resource-icon-download {
   border: 1px solid $grey-super-light-color;
   border-radius: 4px;
diff --git a/src/app/shared/components/page-header/page-header.component.html b/src/app/shared/components/page-header/page-header.component.html
index f2d0ad612e33d4eb8672e20f3c367b9323060481..11321fc5e233145dbaa77895c9de882392289ee6 100644
--- a/src/app/shared/components/page-header/page-header.component.html
+++ b/src/app/shared/components/page-header/page-header.component.html
@@ -1,9 +1,9 @@
 <div class="page-header">
-  <div class="back-button" tabindex="0" (click)="goToPreviousPage()"
+  <button class="back-button" tabindex="0" (click)="goToPreviousPage()"
     [ngClass]="{'has-beta-style': pageInfo.hasBetaStyle}">
     <img class="icon-left-arrow" src="./assets/img/left_arrow.svg" alt="Picto de la flèche retour">
     <ng-container i18n="@@dataset.detail.back">Back</ng-container>
-  </div>
+  </button>
 
   <div class="page-title"
     [ngClass]="{'has-surtitle': pageInfo.surtitle, 'has-padding': !pageInfo.surtitle && pageInfo.shareButtons && pageInfo.shareButtons.isActive}">
diff --git a/src/app/shared/components/page-header/page-header.component.scss b/src/app/shared/components/page-header/page-header.component.scss
index 0ca688cf36ac723e17d6bb41044772f6dd77d9e0..429e5b035533bd62a7a3d236d1df7ea700deb9ee 100644
--- a/src/app/shared/components/page-header/page-header.component.scss
+++ b/src/app/shared/components/page-header/page-header.component.scss
@@ -24,6 +24,9 @@
   font-weight: 500;
   cursor: pointer;
   border-right: 4px solid $tomato-color;
+  border-left: none;
+  border-bottom: none;
+  border-top: none;
   padding: 1.125rem 1rem 1.125rem 0;
   margin-right: 1rem;
   width: 6rem;
@@ -32,6 +35,7 @@
   align-self: flex-start;
   flex-shrink: 0;
   justify-content: center;
+  background-color: transparent;
   // Hide back button for mobile
   display: none;
 
diff --git a/src/app/shared/components/restricted-access-banner/restricted-access-banner.component.html b/src/app/shared/components/restricted-access-banner/restricted-access-banner.component.html
index 06ad5d41a65afec6b012628ea3224329a68def1c..6da202464fe7532db4357f69250b8c8539f17f11 100644
--- a/src/app/shared/components/restricted-access-banner/restricted-access-banner.component.html
+++ b/src/app/shared/components/restricted-access-banner/restricted-access-banner.component.html
@@ -1,7 +1,7 @@
 <div class="access-restreint">
   <div class="access-restreint-message">
     <div class="picto-warning">
-      <svg xmlns="http://www.w3.org/2000/svg" width="16" height="14" fill="none" viewBox="0 0 16 14">
+      <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="none" viewBox="0 0 16 14">
         <path fill="#fff"
           d="M15.581 12.031c.146.292.191.584.137.875-.055.31-.2.565-.438.766-.237.219-.52.328-.848.328H1.308c-.329 0-.611-.11-.848-.328a1.26 1.26 0 0 1-.438-.766 1.356 1.356 0 0 1 .137-.875L6.722.656c.164-.291.392-.483.683-.574.31-.11.61-.11.903 0 .31.091.546.283.71.574l6.563 11.375zM7.87 9.68c-.346 0-.647.127-.902.383a1.19 1.19 0 0 0-.356.874c0 .347.119.648.356.903.255.237.556.355.902.355s.638-.118.875-.355c.255-.255.383-.556.383-.902 0-.347-.128-.639-.383-.876a1.147 1.147 0 0 0-.875-.382zM6.667 5.168l.219 3.719c0 .073.027.146.082.218a.4.4 0 0 0 .246.082h1.312a.296.296 0 0 0 .219-.082c.073-.072.11-.145.11-.218l.218-3.719c0-.11-.036-.191-.11-.246a.26.26 0 0 0-.218-.11h-1.75a.34.34 0 0 0-.246.11c-.055.055-.082.137-.082.246z" />
       </svg>
@@ -18,4 +18,4 @@
     </a>
 
   </div>
-</div>
\ No newline at end of file
+</div>
diff --git a/src/app/shared/components/restricted-access-banner/restricted-access-banner.component.scss b/src/app/shared/components/restricted-access-banner/restricted-access-banner.component.scss
index 21fc05876eb9b11df8f1d98fa0faa3bb38a964fa..6888b9c97f25a1116abf67a50422a7851bf7e026 100644
--- a/src/app/shared/components/restricted-access-banner/restricted-access-banner.component.scss
+++ b/src/app/shared/components/restricted-access-banner/restricted-access-banner.component.scss
@@ -13,6 +13,11 @@
     .picto-warning {
       margin-right: 0.5rem;
 
+      svg {
+        width: 16px;
+        height: 14px;
+      }
+
       path {
         fill: $tomato-color;
       }
diff --git a/src/app/user/components/auth/login/login.component.scss b/src/app/user/components/auth/login/login.component.scss
index 527b41f1c3c54dea0bb550fc148a4676f1f999f7..a0b88881e8bf9388779d1ad10c2857036d042033 100644
--- a/src/app/user/components/auth/login/login.component.scss
+++ b/src/app/user/components/auth/login/login.component.scss
@@ -1,6 +1,11 @@
 @import '../../../../../scss/variables.scss';
 @import '../../../../../../node_modules/bulma/sass/utilities/_all.sass';
 
+::placeholder { /* Chrome, Firefox, Opera, Safari 10.1+ */
+  color: $grey-dark-color;
+  opacity: 1; /* Firefox */
+}
+
 .login-container {
   height: 100%;
 }
diff --git a/src/i18n/messages.en.xlf b/src/i18n/messages.en.xlf
index 33957a5fb5165bb883c5582e5c88f0deb06e13ca..e7d7c6ea553c0ac9e89eeac654f0027aa7f6aa89 100644
--- a/src/i18n/messages.en.xlf
+++ b/src/i18n/messages.en.xlf
@@ -3,6 +3,18 @@
   xmlns="urn:oasis:names:tc:xliff:document:1.2">
   <file source-language="en" datatype="plaintext" original="ng2.template">
     <body>
+      <trans-unit id="skipLinks.content" datatype="html">
+        <source>Go to content</source>
+        <target>Go to content</target>
+      </trans-unit>
+      <trans-unit id="skipLinks.search" datatype="html">
+        <source>Go to search</source>
+        <target>Go to search</target>
+      </trans-unit>
+      <trans-unit id="skipLinks.footer" datatype="html">
+        <source>Go to footer</source>
+        <target>Go to footer</target>
+      </trans-unit>
       <trans-unit id="menu.home" datatype="html">
         <source>Home</source>
         <target>Home</target>
diff --git a/src/i18n/messages.fr.xlf b/src/i18n/messages.fr.xlf
index 3bbf0b1365aa7b0afaea9fb6fbc52f871c99f510..5043e9121cc8a17d476a57797ef5bdea619b9ddd 100644
--- a/src/i18n/messages.fr.xlf
+++ b/src/i18n/messages.fr.xlf
@@ -3,6 +3,18 @@
   xmlns="urn:oasis:names:tc:xliff:document:1.2">
   <file source-language="en" datatype="plaintext" original="ng2.template">
     <body>
+      <trans-unit id="skipLinks.content" datatype="html">
+        <source>Go to content</source>
+        <target>Aller au contenu</target>
+      </trans-unit>
+      <trans-unit id="skipLinks.search" datatype="html">
+        <source>Go to search</source>
+        <target>Aller à la recherche</target>
+      </trans-unit>
+      <trans-unit id="skipLinks.footer" datatype="html">
+        <source>Go to footer</source>
+        <target>Aller au footer</target>
+      </trans-unit>
       <trans-unit id="menu.home" datatype="html">
         <source>Home</source>
         <target>Accueil</target>