diff --git a/model-viewer/index.html b/model-viewer/index.html
index 2904a0a66801a589a08a627a9250446ae98cdca5..9e46a2f056cfa0e1be4c0fe4494f90df316c8c9c 100644
--- a/model-viewer/index.html
+++ b/model-viewer/index.html
@@ -6,46 +6,67 @@
       src="https://ajax.googleapis.com/ajax/libs/model-viewer/3.1.1/model-viewer.min.js"
     ></script>
     <style>
+      body {
+        font-family: system-ui;
+      }
+
       model-viewer {
         height: inherit;
         width: inherit;
       }
-      .host {
+
+      .viewer-container {
         height: 100svh;
         width: 100svw;
+        position: relative;
       }
-      .button {
+
+      .ar-button {
         display: flex;
         justify-content: center;
         align-items: center;
-        padding: 9px 12px;
-        height: 40px;
-        width: 172px;
+        padding: 30px 50px;
         border: none;
         background: #ff2849;
         border-radius: 20px;
         cursor: pointer;
+        position: absolute;
+        width: 600px;
+        bottom: 50px;
+        left: calc((100svw / 2) - (660px / 2));
       }
+
       .label {
-        line-height: 22px;
-        font-size: 17px;
+        font-size: 50px;
+        font-weight: bold;
         color: #fff;
         font-family: sans-serif;
         letter-spacing: 1px;
       }
+
+      .description {
+        position: absolute;
+        top: 50px;
+        font-size: 50px;
+        text-align: center;
+      }
     </style>
   </head>
   <body>
-    <div class="host">
+    <div class="description">
+      <div>Bienvenue à l&apos;exposition "Hoelympique" !</div>
+      <div>Pour démarrer, cliquez sur le bouton "Démarrer l&apos;expérience !"</div>
+    </div>
+    <div class="viewer-container">
       <model-viewer
-        src="deer/scene.gltf"
+        src="https://modelviewer.dev/shared-assets/models/RobotExpressive.glb"
         ar
         shadow-intensity="1"
         camera-controls
-        touch-action="none"
+        autoplay
       >
-        <div class="button" slot="ar-button">
-          <span class="label">Go to AR</span>
+        <div class="ar-button" slot="ar-button">
+          <span class="label">Démarrer l'expérience !</span>
         </div>
       </model-viewer>
     </div>