css3网页加载动画图标代码

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以下是 css3网页加载动画图标代码的示例演示效果:
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部分效果截图:
HTML代码(index.html):
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>css3网页加载动画图标下载</title>

<style>
body{
	background: gainsboro;
}

.loader {
  margin: 4em auto;
}
.loader--audioWave {
  width: 3em;
  height: 2em;
  background: linear-gradient(#9b59b6, #9b59b6) 0 50%, linear-gradient(#9b59b6, #9b59b6) 0.625em 50%, linear-gradient(#9b59b6, #9b59b6) 1.25em 50%, linear-gradient(#9b59b6, #9b59b6) 1.875em 50%, linear-gradient(#9b59b6, #9b59b6) 2.5em 50%;
  background-repeat: no-repeat;
  background-size: 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em;
  animation: audioWave 1.5s linear infinite;
}
@keyframes audioWave {
  25% {
    background: linear-gradient(#3498db, #3498db) 0 50%, linear-gradient(#9b59b6, #9b59b6) 0.625em 50%, linear-gradient(#9b59b6, #9b59b6) 1.25em 50%, linear-gradient(#9b59b6, #9b59b6) 1.875em 50%, linear-gradient(#9b59b6, #9b59b6) 2.5em 50%;
    background-repeat: no-repeat;
    background-size: 0.5em 2em, 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em;
  }
  37.5% {
    background: linear-gradient(#9b59b6, #9b59b6) 0 50%, linear-gradient(#3498db, #3498db) 0.625em 50%, linear-gradient(#9b59b6, #9b59b6) 1.25em 50%, linear-gradient(#9b59b6, #9b59b6) 1.875em 50%, linear-gradient(#9b59b6, #9b59b6) 2.5em 50%;
    background-repeat: no-repeat;
    background-size: 0.5em 0.25em, 0.5em 2em, 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em;
  }
  50% {
    background: linear-gradient(#9b59b6, #9b59b6) 0 50%, linear-gradient(#9b59b6, #9b59b6) 0.625em 50%, linear-gradient(#3498db, #3498db) 1.25em 50%, linear-gradient(#9b59b6, #9b59b6) 1.875em 50%, linear-gradient(#9b59b6, #9b59b6) 2.5em 50%;
    background-repeat: no-repeat;
    background-size: 0.5em 0.25em, 0.5em 0.25em, 0.5em 2em, 0.5em 0.25em, 0.5em 0.25em;
  }
  62.5% {
    background: linear-gradient(#9b59b6, #9b59b6) 0 50%, linear-gradient(#9b59b6, #9b59b6) 0.625em 50%, linear-gradient(#9b59b6, #9b59b6) 1.25em 50%, linear-gradient(#3498db, #3498db) 1.875em 50%, linear-gradient(#9b59b6, #9b59b6) 2.5em 50%;
    background-repeat: no-repeat;
    background-size: 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em, 0.5em 2em, 0.5em 0.25em;
  }
  75% {
    background: linear-gradient(#9b59b6, #9b59b6) 0 50%, linear-gradient(#9b59b6, #9b59b6) 0.625em 50%, linear-gradient(#9b59b6, #9b59b6) 1.25em 50%, linear-gradient(#9b59b6, #9b59b6) 1.875em 50%, linear-gradient(#3498db, #3498db) 2.5em 50%;
    background-repeat: no-repeat;
    background-size: 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em, 0.5em 0.25em, 0.5em 2em;
  }
}
.loader--snake {
  width: 1.25em;
  height: 1.25em;
  border-radius: 50%;
  transform: translate(-4.125em);
  box-shadow: 1.375em 0em #debf23, 1.375em 0em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 2.75em 0.29721em #b8b64c, 2.75em -0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 4.125em 0.18368em #92ae75, 4.125em -0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 5.5em -0.18368em #6ca59d, 5.5em 0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 6.875em -0.29721em #469cc6, 6.875em 0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52);
  animation: snake 2s linear infinite;
}
@keyframes snake {
  0% {
    box-shadow: 1.375em 0em #debf23, 1.375em 0em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 2.75em 0.29721em #b8b64c, 2.75em -0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 4.125em 0.18368em #92ae75, 4.125em -0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 5.5em -0.18368em #6ca59d, 5.5em 0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 6.875em -0.29721em #469cc6, 6.875em 0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52);
  }
  20% {
    box-shadow: 1.375em 0.29721em #b8b64c, 1.375em -0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 2.75em 0.18368em #92ae75, 2.75em -0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 4.125em -0.18368em #6ca59d, 4.125em 0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 5.5em -0.29721em #469cc6, 5.5em 0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 6.875em 0.0em #debf23, 6.875em 0.0em 0.625em -0.3125em rgba(0, 0, 0, 0.52);
  }
  40% {
    box-shadow: 1.375em 0.18368em #92ae75, 1.375em -0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 2.75em -0.18368em #6ca59d, 2.75em 0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 4.125em -0.29721em #469cc6, 4.125em 0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 5.5em 0.0em #debf23, 5.5em 0.0em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 6.875em 0.29721em #b8b64c, 6.875em -0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52);
  }
  60% {
    box-shadow: 1.375em -0.18368em #6ca59d, 1.375em 0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 2.75em -0.29721em #469cc6, 2.75em 0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 4.125em 0.0em #debf23, 4.125em 0.0em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 5.5em 0.29721em #b8b64c, 5.5em -0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 6.875em 0.18368em #92ae75, 6.875em -0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52);
  }
  80% {
    box-shadow: 1.375em -0.29721em #469cc6, 1.375em 0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 2.75em 0.0em #debf23, 2.75em 0.0em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 4.125em 0.29721em #b8b64c, 4.125em -0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 5.5em 0.18368em #92ae75, 5.5em -0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 6.875em -0.18368em #6ca59d, 6.875em 0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52);
  }
  100% {
    box-shadow: 1.375em 0.0em #debf23, 1.375em 0.0em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 2.75em 0.29721em #b8b64c, 2.75em -0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 4.125em 0.18368em #92ae75, 4.125em -0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 5.5em -0.18368em #6ca59d, 5.5em 0.18368em 0.625em -0.3125em rgba(0, 0, 0, 0.52), 6.875em -0.29721em #469cc6, 6.875em 0.29721em 0.625em -0.3125em rgba(0, 0, 0, 0.52);
  }
}
.loader--spinningDisc {
  border: solid 0.5em #9b59b6;
  border-right-color: transparent;
  border-left-color: transparent;
  padding: 0.5em;
  width: 2em;
  height: 2em;
  border-radius: 50%;
  background: #3498db;
  background-clip: content-box;
  animation: spinDisc 1.5s linear infinite;
}
@keyframes spinDisc {
  50% {
    border-top-color: #3498db;
    border-bottom-color: #3498db;
    background-color: #2ecc71;
  }
  100% {
    transform: rotate(1turn);
  }
}
.loader--glisteningWindow {
  width: 0.25em;
  height: 0.25em;
  box-shadow: 0.70711em 0.70711em 0 0em #2ecc71, -0.70711em 0.70711em 0 0.17678em #9b59b6, -0.70711em -0.70711em 0 0.25em #3498db, 0.70711em -0.70711em 0 0.17678em #f1c40f;
  animation: gw 1s ease-in-out infinite, rot 2.8s linear infinite;
}
@keyframes rot {
  to {
    transform: rotate(360deg);
  }
}
@keyframes gw {
  0% {
    box-shadow: 0.70711em 0.70711em 0 0.125em #2ecc71, -0.70711em 0.70711em 0 0.39017em #9b59b6, -0.70711em -0.70711em 0 0.5em #3498db, 0.70711em -0.70711em 0 0.39017em #f1c40f;
  }
  25% {
    box-shadow: 0.70711em 0.70711em 0 0.39017em #2ecc71, -0.70711em 0.70711em 0 0.5em #9b59b6, -0.70711em -0.70711em 0 0.39017em #3498db, 0.70711em -0.70711em 0 0.125em #f1c40f;
  }
  50% {
    box-shadow: 0.70711em 0.70711em 0 0.5em #2ecc71, -0.70711em 0.70711em 0 0.39017em #9b59b6, -0.70711em -0.70711em 0 0.125em #3498db, 0.70711em -0.70711em 0 0.39017em #f1c40f;
  }
  75% {
    box-shadow: 0.70711em 0.70711em 0 0.39017em #2ecc71, -0.70711em 0.70711em 0 0.125em #9b59b6, -0.70711em -0.70711em 0 0.39017em #3498db, 0.70711em -0.70711em 0 0.5em #f1c40f;
  }
  100% {
    box-shadow: 0.70711em 0.70711em 0 0.125em #2ecc71, -0.70711em 0.70711em 0 0.39017em #9b59b6, -0.70711em -0.70711em 0 0.5em #3498db, 0.70711em -0.70711em 0 0.39017em #f1c40f;
  }
}
.loader--circularSquare {
  width: 0;
  height: 0;
  box-shadow: -0.625em -0.625em 0 0.625em #9b59b6, 0.625em -0.625em 0 0.625em #9b59b6, -0.625em 0.625em 0 0.625em #9b59b6, 0.625em 0.625em 0 0.625em #9b59b6;
  animation: circSquare 1.5s ease-in-out infinite;
}
@keyframes circSquare {
  50% {
    width: 1.25em;
    height: 1.25em;
    border-radius: 50%;
    transform: rotate(0.5turn);
    box-shadow: -2.5em 0 0 #2ecc71, 2.5em 0 0 #e74c3c, -2.5em 0 0 #3498db, 2.5em 0 0 #f1c40f;
  }
  80%, 100% {
    transform: rotate(1turn);
  }
}
</style>
<script src="js/prefixfree.min.js"></script>
</head>

<body>
<div class='loader loader--audioWave'></div>
<div class='loader loader--snake'></div>
<div class='loader loader--spinningDisc'></div>
<div class='loader loader--glisteningWindow'></div>
<div class='loader loader--circularSquare'></div>
</body>
</html>
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