CSS加载器

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html

css

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html

css

body {
  margin: 0;
  overflow: hidden;
}

.background {
  width: 100vw;
  height: 100vh;
  background: #FAFFB8;
  --amount: 20;
}

.background span {
  width: 8vmin;
  height: 8vmin;
  border-radius: 4vmin;
  backface-visibility: hidden;
  position: absolute;
  animation-name: move;
  animation-timing-function: cubic-bezier(0.4, 0, 1, 0.8);
  animation-iteration-count: infinite;
  animation-duration: 3s;
  top: calc(50% - 4vmin);
  left: 50%;
  transform-origin: -4vmin center;
}
.background span:nth-child(1) {
  background: #226B80;
  animation-delay: -0.5s;
  opacity: 0;
}
.background span:nth-child(2) {
  background: #226B80;
  animation-delay: -1s;
  opacity: 0;
}
.background span:nth-child(3) {
  background: #35B0AB;
  animation-delay: -1.5s;
  opacity: 0;
}
.background span:nth-child(4) {
  background: #C5F0A4;
  animation-delay: -2s;
  opacity: 0;
}
.background span:nth-child(5) {
  background: #226B80;
  animation-delay: -2.5s;
  opacity: 0;
}
.background span:nth-child(6) {
  background: #C5F0A4;
  animation-delay: -3s;
  opacity: 0;
}

@keyframes move {
  0% {
    transform: scale(1) rotate(0deg) translate3d(0, 0, 1px);
  }
  30% {
    opacity: 1;
  }
  100% {
    z-index: 10;
    transform: scale(0) rotate(360deg) translate3d(0, 0, 1px);
  }
}

JavaScript

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