.dr-stage { position: relative; width: 100%; max-width: 400px; margin: 0 auto; overflow: hidden;
  background: #fff; border: 2px solid var(--line, #d8d3e7); border-bottom-width: 5px; border-radius: 12px; }
.dr-canvas { position: relative; width: 400px; height: 400px; transform-origin: top left; }
.dr-canvas canvas { position: absolute; left: 0; top: 0; }