.skulpt-runner {
  border: 1px solid #c0c0c0;
  border-radius: 8px;
  margin: 1em 0;
  background: #fff;
}

.skulpt-canvas-wrap {
  text-align: center;
  border-top: 1px solid #e0e0e0;
  padding: 8px;
  background: #fff;
}

.skulpt-canvas-wrap > div {
  display: inline-block;
  border: 1px solid #ccc;
}