diff --git a/examples/template.html b/examples/template.html
index 96f7cc1342..44fd27062f 100644
--- a/examples/template.html
+++ b/examples/template.html
@@ -48,6 +48,7 @@
       }
 
       #canvas {
+        max-width: 100%;
         box-shadow: 0 0 0.5rem #7787;
       }