.gauge__body {
  width: 100%;
  height: 0;
  padding-bottom: 50%;
  background: conic-gradient( from 4.7rad at 50% 100%, green 0deg 40deg, yellow 40deg 68deg, red 68deg 144deg);
  position: relative;
  border-top-left-radius: 100% 200%;
  border-top-right-radius: 100% 200%;
  overflow: hidden;
  margin: auto 0;
}

.gauge__fill {
  position: absolute;
  top: 100%;
  left: 0;
  width: inherit;
  height: 100%;
  background-color: rgba(255, 255, 255, .4);
  border-top: 8px solid white;
  transform-origin: center top;
  transform: rotate(0.25turn);
  transition: transform 0.2s ease-out;
}

.gauge__cover {
  width: 75%;
  height: 150%;
  background: #ffffff;
  border-radius: 50%;
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding-bottom: 25%;
  box-sizing: border-box;
}