1  
 2  *
 3  {
 4      margin: 0;
 5      padding: 0;
 6  }
 7  
 8  html,
 9  body
10  {
11      overflow: hidden;
12  }
13  
14  .webgl
15  {
16      position: fixed;
17      top: 0;
18      left: 0;
19      outline: none;
20  }