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css蓝绿色星球雪花飘落背景效果

css蓝绿色星球雪花飘落背景效果

完整代码:

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>css蓝绿色星球雪花飘落背景效果</title>
<style>
.planet_wraper {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  width: 7rem;
  height: 7rem;
  margin: auto;
  border-radius: 50%;
}
.planet_shadow {
   background-image: linear-gradient(top left, #24b88b 20%, #21776f);
   background-image: -moz-linear-gradient(top left, #24b88b 20%, #21776f);
  box-shadow: inset 0 -5px 10px rgba(22, 48, 64, 0.5), 0 0 1.5rem rgba(170, 194, 194, 0.3);
}
.planet {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  animation: rotate 15s linear infinite;
  overflow: hidden;
}
.planet_wraper::before, .planet_wraper::after {
  content: '';
  display: block;
  position: absolute;
  border-radius: 50%;
  box-shadow: 0 0.1rem 0.1rem rgba(170, 194, 194, 0.1), inset 0 -0.1rem 0.1rem rgba(170, 194, 194, 0.1);
  animation: rotate 5s linear infinite;
}
.planet_wraper::before {
  top: -1.75rem;
  left: -1.75rem;
  width: 11rem;
  height: 11rem;
  animation-delay: 1s;
}
.planet_wraper::after {
  top: -2.5rem;
  left: -2.5rem;
  width: 15rem;
  height: 15rem;
}
.planet > * {
  position: relative;
  border-radius: 50%;
  background-color: #209b85;
  box-shadow: inset 1px 1px 5px #163040, 0 0 7px #63eed2 ;
  opacity: 0.3;
}
.crater:nth-of-type(1) {
  top: 2rem;
  left: 1.5rem;
  width: 0.75rem;
  height: 0.75rem;
}
.crater:nth-of-type(2) {
  top: -0.75rem;
  left: 5rem;
  width: 2.5rem;
  height: 2.5rem;
}
.crater:nth-of-type(3) {
  top: 0.5rem;
  left: 2rem;
  width: 1.25rem;
  height: 1.25rem;
}
.crater:nth-of-type(4) {
  top: -1.5rem;
  left: 3.5rem;
  width: 0.5rem;
  height: 0.5rem;
}
.crater:nth-of-type(5)  {
  top: 1.25rem;
  left: 3.5rem;
  width: 2rem;
  height: 1.5rem;
}
@keyframes bg {
  to { background-position: center 20rem; }
}
@keyframes rotate {
  to { transform: rotate(360deg)}
}
 body {
   background-color: #163040;
   background-image:  url('data:image/svg+xml;utf8,<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><circle opacity="0.5" fill="%23FFFFFF" cx="28.75" cy="22.338" r="0.713"/><circle opacity="0.2" fill="%23FFFFFF" cx="26.75" cy="79.443" r="0.307"/><circle opacity="0.5" fill="%23FFFFFF" cx="50" cy="41.884" r="0.308"/><circle fill="%23FFFFFF" cx="12.883" cy="42.25" r="0.367"/><circle opacity="0.4" fill="%23FFFFFF" cx="80" cy="72.818" r="0.307"/><circle opacity="0.5" fill="%23FFFFFF" cx="55.625" cy="12.375" r="0.308"/><circle opacity="0.2" fill="%23FFFFFF" cx="73.307" cy="89.375" r="0.308"/><circle opacity="0.5" fill="%23FFFFFF" cx="73" cy="53.884" r="0.308"/><circle opacity="0.5" fill="%23FFFFFF" cx="38.875" cy="89.432" r="0.385"/></svg>');
  background-size: 20rem 20rem;
  background-position: center 0;
  animation: bg 20s linear infinite;
}</style>
</head>
<body>
<div class="planet_wraper planet_shadow">
  <div class="planet">
    <div class="crater"></div>
    <div class="crater"></div>
    <div class="crater"></div>
    <div class="crater"></div>
    <div class="crater"></div>
   </div>
</div>

<script>
</script>

</body>
</html>


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