mempool/frontend/src/app/components/clock-face/clock-face.component.scss

.clock-face {
  position: relative;
  height: 84.375%;
  margin: auto;
  overflow: hidden;

  .cut-out, .demo-dial {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    width: 100%;
    height: 100%;

    .face {
      fill: #11131f;
    }
  }
}