html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100%;
  background: #fff;
  overflow-x: hidden;
  overflow-y: auto;
}
#sketch-holder {
  width: 100vw;
  min-height: 100vh;
  background: #fff;
  overflow: visible;
}
canvas {
  display: block;
}