.atcanvas-canvas {
  display: block;
  background: #1a1a1a;
  touch-action: none;
}
.html-widget.atcanvas {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
  border: 1px solid #3a3a3a;
  border-radius: 4px;
}