.rp-designer {
  text-align: center;
  margin: 20px auto;
  max-width: 500px;
}
#rp-canvas {
  display: block;
  margin: 0 auto 10px;
  background-color: #fff;
}
#rp-upload,
#rp-save-design,
.rp-designer button {
  margin: 5px;
  padding: 10px 15px;
}