Fix vanta container height

index.html

@@ -5,7 +5,8 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Vanta Clouds</title>
     <style>
-        body { margin: 0; overflow: hidden; }
+        html, body { margin: 0; padding: 0; overflow: hidden; width: 100%; height: 100%; }
+        #vanta { width: 100vw; height: 100vh; }
     </style>
 </head>
 <body>