html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: transparent;
}
canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: transparent;
}
#error {
  position: absolute;
  bottom: 0;
  margin: 12px;
  padding: 10px;
  border-radius: 8px;
  background: #fff3ed;
  color: #762e20;
  font: 14px/1.5 system-ui;
}