body {
  overflow: hidden; /* Hide both vertical and horizontal scrollbars and disable scrolling */
}

#container > div {
  background-color: #8ca0ff;
  width: 50px;
  height: 50px;
}

#container > div.filled {
  width: 50px;
  height: 50px;
  /* clip-path: circle(10px); */
  background: radial-gradient(circle at center, red 0, blue, green 100%);
}