.magic-background {
  position: relative;
  display: inline-block;
  max-height: 700px;
  max-width: 700px;
}

#source-img {
  display: block;
  width: 100%;
  height: 100%;
  height: auto;
}

#pixel-canvas {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%; /* 부모 요소를 꽉 채움 */
  height: 100%; /* 부모 요소를 꽉 채움 */
  pointer-events: none;
}