Make it usable on screens with < 480px width

index.html

@@ -25,10 +25,16 @@
        background: var(--background-color);
        color: var(--primary-color);
        font-family: sans-serif;
-       padding: 40px;
+       padding: 20px;
        font-size: 14px;
      }
 
+     @media screen and (min-width: 480px) {
+         body {
+             padding: 40px;
+         }
+     }
+
      canvas {
        border: 1px solid var(--primary-color);
      }