Update app.py

app.py

@@ -978,7 +978,6 @@ with gr.Blocks(css=css, js=js, head=head) as demo:
   }
   #model3D canvas {
     user-select: none;
-    touch-action: none;
   }
   #chart hr {
     width: 1px;
@@ -1128,11 +1127,15 @@ with gr.Blocks(css=css, js=js, head=head) as demo:
                   model3D.style.width = \"100vw\";
                   model3D.style.height = \"100vh\";
                   model3D.style.position = \"fixed\";
+                  model3D.style.left = \"0\";
+                  model3D.style.top = \"0\";
                   model3D.style.zIndex = \"100\";
                 } else {
                   model3D.style.width = \"initial\";
                   model3D.style.height = \"initial\";
                   model3D.style.position = \"initial\";
+                  model3D.style.left = \"initial\";
+                  model3D.style.top = \"initial\";
                   model3D.style.zIndex = \"initial\";
                 }'><b style='color:blue;'>◅</b>𝍠<b style='color:red;'>▻</b></a></div>
               </div>