diff --git a/gui/index.html b/gui/index.html
index 74db3e0..8793d70 100644
--- a/gui/index.html
+++ b/gui/index.html
@@ -20,7 +20,8 @@
             #canvas {
                 /* Force Slint to occupy the entire viewport */
                 width: 100vw !important;
-                height: 100vh !important;
+                height: 100vh !important;  /* if browser doesn't support dvh */
+                height: 100dvh !important;
             }
         </style>
     </body>