Update index.html

index.html

@@ -8,6 +8,10 @@
     /* The canvas fills the viewport */
     canvas { display: block; }
     /* Top horizontal menu bar (outside the canvas) */
+    canvas {
+    display: block;
+    margin-top: 94px;
+}
     #topMenu {
       position: fixed;
       top: 0;