html,body,div{
  margin: 0;
  padding: 0;
  border: 0;
}
body{
  background: #000;
  overflow: hidden;
}
.container{
  position: relative;
  padding: 50px 0 0 0;
  width: 512px;
  height: 448px;
  margin: 0 auto;
}
.container canvas{
  position: absolute;
}