css可以制作很多酷炫的效果，今天我们就通过css制作一个网页背景渐变的动画效果，如下图所示：
<html>
<head>
<meta charset="UTF-8">
<link rel="apple-touch-icon" type="image/png"
href="https://cpwebassets.codepen.io/assets/favicon/apple-touch-icon-5ae1a0698dcc2402e9712f7d01ed509a57814f994c660df9f7a952f3060705ee.png">
<meta name="apple-mobile-web-app-title" content="CodePen">
<link rel="shortcut icon" type="image/x-icon"
href="https://cpwebassets.codepen.io/assets/favicon/favicon-aec34940fbc1a6e787974dcd360f2c6b63348d4b1f4e06c77743096d55480f33.ico">
<link rel="mask-icon" type="image/x-icon"
href="https://cpwebassets.codepen.io/assets/favicon/logo-pin-8f3771b1072e3c38bd662872f6b673a722f4b3ca2421637d5596661b4e2132cc.svg"
color="#111">
<title>css制作网页背景渐变动画效果(含源码)</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.0.2/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css">
<style>
body {
background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
background-size: 400% 400%;
-webkit-animation: gradient 15s ease infinite;
animation: gradient 15s ease infinite;
height: 100vh;
}
@-webkit-keyframes gradient {
0% {
background-position: 0% 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0% 50%;
}
}
@keyframes gradient {
0% {
background-position: 0% 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0% 50%;
}
}
</style>
<script>
window.console = window.console || function (t) { };
</script>
<script>
if (document.location.search.match(/type=embed/gi)) {
window.parent.postMessage("resize", "*");
}
</script>
</head>
<body translate="no">
<div class="d-flex flex-column justify-content-center w-100 h-100">
<div class="d-flex flex-column justify-content-center align-items-center">
<h1 class="fw-light text-white m-0">Pure CSS Gradient Background Animation</h1>
<div class="btn-group my-5">
<a href="https://codepen-api-export-production.s3.us-west-2.amazonaws.com/zip/PEN/pyBNzX/1578778289271/pure-css-gradient-background-animation.zip"
class="btn btn-outline-light" aria-current="page"><i class="fas fa-file-download me-2"></i> SOURCE CODE</a>
<a href="https://codepen.io/P1N2O/full/pyBNzX" class="btn btn-outline-light">FULL SCREEN <i
class="fas fa-expand ms-2"></i></a>
</div>
<a href="https://manuel.pinto.dev">
<h5 class="fw-light text-white m-0">— Pen by Manuel Pinto —</h5>
</a>
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<a id="xl_chrome_ext_download" href="javascript:;">下载视频</a>
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</body>
</html>通过以上内容我们知道了css如何制作一个网页背景渐变的动画效果？感谢您访问“我爱捣鼓(www.woaidaogu.com)”网站的内容，希望对大家有所帮助！引用本文内容时，请注明出处！谢谢合作！
