diff --git a/package.json b/package.json
index d168fc3af1..70e5d14918 100644
--- a/package.json
+++ b/package.json
@@ -65,7 +65,7 @@
     "normalize-css": "^2.1.0",
     "npm": "^6.0.0",
     "npm-modernizr": "^2.8.3",
-    "phraseanet-production-client": "0.34.78-d",
+    "phraseanet-production-client": "0.34.79-d",
     "requirejs": "^2.3.5",
     "tinymce": "^4.0.28",
     "underscore": "^1.8.3",
diff --git a/resources/www/lightbox/styles/jquery-mobile/_jquery-validator.scss b/resources/www/lightbox/styles/jquery-mobile/_jquery-validator.scss
index bbf198ef80..a44f3d8f48 100644
--- a/resources/www/lightbox/styles/jquery-mobile/_jquery-validator.scss
+++ b/resources/www/lightbox/styles/jquery-mobile/_jquery-validator.scss
@@ -7,27 +7,40 @@ ul.image_set{
   width:100%;
   border:none;
   list-style-type: none;
+  display: flex;
+  flex-wrap: wrap;
 }
 li.image_box a img{
   position:relative;
-  vertical-align:middle;
   border:none;
+  width: 100%!important;
+  height: auto!important;
+  top: 0 !important;
+  object-fit: cover;
+
 }
 li.image_box a{
   padding:0;
   text-shadow:0;
   margin:0;
+  width: 100%;
 }
 li.image_box{
-  width:80px;
-  height:80px;
-  position:relative;
-  float:left;
-  margin:0px 15px 15px 0px;
-  padding:0px;
-  text-align:center;
+  width: 32%;
+  position: relative;
+  margin: 0 2% 15px 0;
+  padding: 0;
+  display: flex;
+  align-items: center;
+  text-align: center;
+  background: #ededed;
+  &:nth-child(3n) {
+    margin-right: 0;
+  }
   .thumb_wrapper {
     background: #ededed;
+    width: 100%!important;
+    height: 100%!important;
   }
 }
 a.no.active_choice{
diff --git a/resources/www/lightbox/styles/main-mobile.scss b/resources/www/lightbox/styles/main-mobile.scss
index ae1c307342..e5c9e1e93e 100644
--- a/resources/www/lightbox/styles/main-mobile.scss
+++ b/resources/www/lightbox/styles/main-mobile.scss
@@ -199,7 +199,6 @@ img {
 }
 
 #report .CHIM.diapo {
-  position: relative;
   text-align: center;
 }
 
diff --git a/templates/mobile/lightbox/validate.html.twig b/templates/mobile/lightbox/validate.html.twig
index 5b6653ea9f..fbaa154a2a 100644
--- a/templates/mobile/lightbox/validate.html.twig
+++ b/templates/mobile/lightbox/validate.html.twig
@@ -61,6 +61,8 @@
                     {{ 'lightbox::list' | trans }}
                 </a>
             </div>
+            <div class="report_list_backup" id="report_list_backup">&nbsp;</div>
+            <div class="report_summary_backup " id="report_summary_backup">&nbsp;</div>
         {% endif %}
             <input type="hidden" id="navigation" value="{{ basket.getId() }}">
             <div id="report" class="summary_block">
@@ -76,7 +78,7 @@
                                     </div>
                             {% endif %}
                             <a href="{{ path('lightbox_ajax_load_basketelement', { 'sselcont_id' : basket_element.getId() }) }}">
-                                {{thumbnail.format(basket_element.getRecord(app).get_thumbnail(), 80, 80, '', true, false)}}
+                                {{thumbnail.format(basket_element.getRecord(app).get_thumbnail(), 300, 300, '', true, false)}}
                             </a>
                             <input type="hidden" class="display_id" name="display_id" value="{{basket_element.getOrd()}}" />
                         </li>
@@ -94,8 +96,6 @@
             {% endif %}
         </div>
     </div>
-    <div class="report_list_backup" id="report_list_backup">&nbsp;</div>
-    <div class="report_summary_backup " id="report_summary_backup">&nbsp;</div>
 
 </div>
 {% endblock %}
diff --git a/yarn.lock b/yarn.lock
index bbe430a90b..ac9b3ff3a2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7555,10 +7555,10 @@ phraseanet-common@^0.4.1:
     js-cookie "^2.1.0"
     pym.js "^1.3.1"
 
-phraseanet-production-client@0.34.78-d:
-  version "0.34.78-d"
-  resolved "https://registry.yarnpkg.com/phraseanet-production-client/-/phraseanet-production-client-0.34.78-d.tgz#39118f39b07ee9878e2406b48c2c1fa9683598be"
-  integrity sha512-4UtEnUxnvbWxwccLOp/ZisJYKencJ/hrTzmQ7JtdGURC5+KFweohX7nfn+giuA/cmfSk1gP2xc9PW8dJVegDrw==
+phraseanet-production-client@0.34.79-d:
+  version "0.34.79-d"
+  resolved "https://registry.yarnpkg.com/phraseanet-production-client/-/phraseanet-production-client-0.34.79-d.tgz#753ebac9e7dcfe49d9f81d2e67847a2031d5e8c6"
+  integrity sha512-TGVGYJrRjIMXiuy7TUsAKU+dHep5M0eBBaUykWYUwXDCwtkBSkDAzMW7Rmg6BxQAj8QJArOp+DCQZtVRbF0rZQ==
   dependencies:
     "@mapbox/mapbox-gl-language" "^0.9.2"
     "@turf/turf" "^5.1.6"