#canvas3{
  width:100%;
  height: 349px;
}
.control{
  background:#38e;
  border:0;
  color:#fff;
  float:left;
  margin-right:2px;
  outline:0;
  padding:10px 10px;
  user-select:none;
}
.control:focus{
  background:#58e;
}
.control.active{
  background:#00f;
}
.control-group{
  position:absolute;
}