[class^="stl-viewer-container"] {
  position: relative;
  display: block;
  width: 100%;
  height: 500px;
  /* border: 1px solid #ddd; */
  /* border-radius: 4px; */
  /* overflow: hidden; */
  /* background: linear-gradient(35deg, #546d78 0%, #000000 0%); */
}

.stl-viewer-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.stl-viewer-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 18px;
  font-weight: bold;
}