body{
  background: transparent;
}

#sketch-holder{
}

#control-holder{
  margin: 5px;
  display: inline-block;
  bottom: 0;
  position: fixed;
}


.colorbutton{
  display: inline-block;
  width: 1.382em; height: 1.382em;
  border: 2px solid transparent;
}

.colorbutton:hover{ border: 2px solid black; }