style.css

   1 canvas {
   2     margin: 20px;
   3     float:left;
   4     }
   5 #controls {
   6     float:left;
   7     width:150px;
   8     }
   9 #controls .control {
  10     cursor: pointer;
  11     font-weight: bold;
  12     }
  13 #highlight-seed, #stop-automaton {
  14     display: none;
  15 }