CSS不要迷失在那里

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html

css

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html

css

html {
  font-size: 1vh;
}

body {
  height: 100vh;
  width: 100vw;
  background: #000;
}

@-webkit-keyframes spin {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

@keyframes spin {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}
.circle {
  position: absolute;
  top: calc(50% - 25rem);
  left: calc(50% - 25rem);
  width: 50rem;
  height: 50rem;
  -webkit-animation: spin 10s infinite alternate cubic-bezier(0.77, 0, 0.175, 1);
          animation: spin 10s infinite alternate cubic-bezier(0.77, 0, 0.175, 1);
}
.circle:nth-child(1) {
  -webkit-animation-delay: -0.1s;
          animation-delay: -0.1s;
}
.circle:nth-child(2) {
  -webkit-animation-delay: -0.2s;
          animation-delay: -0.2s;
}
.circle:nth-child(3) {
  -webkit-animation-delay: -0.3s;
          animation-delay: -0.3s;
}
.circle:nth-child(4) {
  -webkit-animation-delay: -0.4s;
          animation-delay: -0.4s;
}
.circle:nth-child(5) {
  -webkit-animation-delay: -0.5s;
          animation-delay: -0.5s;
}
.circle:nth-child(6) {
  -webkit-animation-delay: -0.6s;
          animation-delay: -0.6s;
}
.circle:nth-child(7) {
  -webkit-animation-delay: -0.7s;
          animation-delay: -0.7s;
}
.circle:nth-child(8) {
  -webkit-animation-delay: -0.8s;
          animation-delay: -0.8s;
}
.circle:nth-child(9) {
  -webkit-animation-delay: -0.9s;
          animation-delay: -0.9s;
}
.circle:nth-child(10) {
  -webkit-animation-delay: -1s;
          animation-delay: -1s;
}
.circle:nth-child(11) {
  -webkit-animation-delay: -1.1s;
          animation-delay: -1.1s;
}
.circle:nth-child(12) {
  -webkit-animation-delay: -1.2s;
          animation-delay: -1.2s;
}
.circle:nth-child(13) {
  -webkit-animation-delay: -1.3s;
          animation-delay: -1.3s;
}
.circle:nth-child(14) {
  -webkit-animation-delay: -1.4s;
          animation-delay: -1.4s;
}
.circle:nth-child(15) {
  -webkit-animation-delay: -1.5s;
          animation-delay: -1.5s;
}
.circle:nth-child(16) {
  -webkit-animation-delay: -1.6s;
          animation-delay: -1.6s;
}
.circle:nth-child(17) {
  -webkit-animation-delay: -1.7s;
          animation-delay: -1.7s;
}
.circle:nth-child(18) {
  -webkit-animation-delay: -1.8s;
          animation-delay: -1.8s;
}
.circle:nth-child(19) {
  -webkit-animation-delay: -1.9s;
          animation-delay: -1.9s;
}
.circle:nth-child(20) {
  -webkit-animation-delay: -2s;
          animation-delay: -2s;
}
.circle:after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 20rem;
  box-shadow: -0.25rem 0rem 0rem 0.4rem white;
}
.circle:nth-child(1):after {
  -webkit-transform: scale(1);
          transform: scale(1);
}
.circle:nth-child(2):after {
  -webkit-transform: scale(0.95);
          transform: scale(0.95);
}
.circle:nth-child(3):after {
  -webkit-transform: scale(0.9);
          transform: scale(0.9);
}
.circle:nth-child(4):after {
  -webkit-transform: scale(0.85);
          transform: scale(0.85);
}
.circle:nth-child(5):after {
  -webkit-transform: scale(0.8);
          transform: scale(0.8);
}
.circle:nth-child(6):after {
  -webkit-transform: scale(0.75);
          transform: scale(0.75);
}
.circle:nth-child(7):after {
  -webkit-transform: scale(0.7);
          transform: scale(0.7);
}
.circle:nth-child(8):after {
  -webkit-transform: scale(0.65);
          transform: scale(0.65);
}
.circle:nth-child(9):after {
  -webkit-transform: scale(0.6);
          transform: scale(0.6);
}
.circle:nth-child(10):after {
  -webkit-transform: scale(0.55);
          transform: scale(0.55);
}
.circle:nth-child(11):after {
  -webkit-transform: scale(0.5);
          transform: scale(0.5);
}
.circle:nth-child(12):after {
  -webkit-transform: scale(0.45);
          transform: scale(0.45);
}
.circle:nth-child(13):after {
  -webkit-transform: scale(0.4);
          transform: scale(0.4);
}
.circle:nth-child(14):after {
  -webkit-transform: scale(0.35);
          transform: scale(0.35);
}
.circle:nth-child(15):after {
  -webkit-transform: scale(0.3);
          transform: scale(0.3);
}
.circle:nth-child(16):after {
  -webkit-transform: scale(0.25);
          transform: scale(0.25);
}
.circle:nth-child(17):after {
  -webkit-transform: scale(0.2);
          transform: scale(0.2);
}
.circle:nth-child(18):after {
  -webkit-transform: scale(0.15);
          transform: scale(0.15);
}
.circle:nth-child(19):after {
  -webkit-transform: scale(0.1);
          transform: scale(0.1);
}
.circle:nth-child(20):after {
  -webkit-transform: scale(0.05);
          transform: scale(0.05);
}

.sig {
  position: fixed;
  bottom: 8px;
  right: 8px;
  text-decoration: none;
  font-size: 12px;
  font-weight: 100;
  font-family: sans-serif;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 2px;
}

JavaScript

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