CSS3粒子动画

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html

css

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html

css

body, html {
  background-color: #000;
  transform-style: preserve-3d;
  perspective: 500;
}

.layer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: inherit;
  height: inherit;
  animation: zoom 20s linear infinite;
  transform-origin: 50% 50%;
}
.layer:nth-child(1) {
  animation-delay: -1s;
}
.layer:nth-child(2) {
  animation-delay: -2s;
}
.layer:nth-child(3) {
  animation-delay: -3s;
}
.layer:nth-child(4) {
  animation-delay: -4s;
}
.layer:nth-child(5) {
  animation-delay: -5s;
}
.layer:nth-child(6) {
  animation-delay: -6s;
}
.layer:nth-child(7) {
  animation-delay: -7s;
}
.layer:nth-child(8) {
  animation-delay: -8s;
}
.layer:nth-child(9) {
  animation-delay: -9s;
}
.layer:nth-child(10) {
  animation-delay: -10s;
}
.layer:nth-child(11) {
  animation-delay: -11s;
}
.layer:nth-child(12) {
  animation-delay: -12s;
}
.layer:nth-child(13) {
  animation-delay: -13s;
}
.layer:nth-child(14) {
  animation-delay: -14s;
}
.layer:nth-child(15) {
  animation-delay: -15s;
}
.layer:nth-child(16) {
  animation-delay: -16s;
}
.layer:nth-child(17) {
  animation-delay: -17s;
}
.layer:nth-child(18) {
  animation-delay: -18s;
}
.layer:nth-child(19) {
  animation-delay: -19s;
}
.layer:nth-child(20) {
  animation-delay: -20s;
}
.layer:nth-child(21) {
  animation-delay: -21s;
}
@keyframes zoom {
  0% {
    transform: perspective(250px) translate3d(0, 0, -500px);
  }
  100% {
    transform: perspective(250px) translate3d(0, 0, 500px);
  }
}
.star {
  position: absolute;
  width: 1px;
  height: 1px;
  background-color: #fff;
}

JavaScript

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