CSS だけで作るローディング画像 ④
= Type 6 =

.radar-spinner, .radar-spinner * {
      box-sizing: border-box;
    }

    .radar-spinner {
      height: 60px;
      width: 60px;
      position: relative;
    }

    .radar-spinner .circle {
      position: absolute;
      height: 100%;
      width: 100%;
      top: 0;
      left: 0;
      animation: radar-spinner-animation 2s infinite;
    }

    .radar-spinner .circle:nth-child(1) {
      padding: calc(60px * 5 * 2 * 0 / 110);
      animation-delay: 300ms;
    }

    .radar-spinner .circle:nth-child(2) {
      padding: calc(60px * 5 * 2 * 1 / 110);
      animation-delay: 300ms;
    }

    .radar-spinner .circle:nth-child(3) {
      padding: calc(60px * 5 * 2 * 2 / 110);
      animation-delay: 300ms;
    }

    .radar-spinner .circle:nth-child(4) {
      padding: calc(60px * 5 * 2 * 3 / 110);
      animation-delay: 0ms;
    }

    .radar-spinner .circle-inner, .radar-spinner .circle-inner-container {
      height: 100%;
      width: 100%;
      border-radius: 50%;
      border: calc(60px * 5 / 110) solid transparent;
    }

    .radar-spinner .circle-inner {
      border-left-color: red;
      border-right-color: limegreen;
    }

    @keyframes radar-spinner-animation {
      50% {
        transform: rotate(180deg);
      }
      100% {
        transform: rotate(0deg);
      }
    }