diff --git a/web/themes/custom/quartiers_de_demain/dist/assets/css/bundle.css b/web/themes/custom/quartiers_de_demain/dist/assets/css/bundle.css
index 2373b1a..bb4822e 100644
--- a/web/themes/custom/quartiers_de_demain/dist/assets/css/bundle.css
+++ b/web/themes/custom/quartiers_de_demain/dist/assets/css/bundle.css
@@ -3273,6 +3273,9 @@ body {
     width: 100%;
   }
 }
+.node-type-site .layout--threecol-25-50-25 .layout__region--third .block-region-third {
+  position: fixed;
+}
 .node-type-site .layout--threecol-25-50-25 .layout__region--third .block-region-third div {
   display: flex;
   flex-direction: row;
diff --git a/web/themes/custom/quartiers_de_demain/src/assets/scss/pages/node-type-site.scss b/web/themes/custom/quartiers_de_demain/src/assets/scss/pages/node-type-site.scss
index 4bff6eb..1e3c759 100644
--- a/web/themes/custom/quartiers_de_demain/src/assets/scss/pages/node-type-site.scss
+++ b/web/themes/custom/quartiers_de_demain/src/assets/scss/pages/node-type-site.scss
@@ -322,13 +322,14 @@
             flex: 0 1 25% !important;
             height: fit-content;
             margin-top: 1rem;
-
             @media(max-width: 500px){
                 display: flex;
                 flex-direction: column;
                 width: 100%;
             }
             .block-region-third{
+                position: fixed;
+
                 div{
                     display: flex;
                     flex-direction: row;