HTML+CSS对角背景变色
HTML+CSS对角背景变色，效果图如下：
<style>
main {min-height: calc(100vh - 158px);background: linear-gradient(-25deg,#03a9f4,#3a78b7 50%,#262626 0,#607d8d);-webkit-backdrop-filter: hue-rotate(120deg);backdrop-filter: hue-rotate(120deg);animation: animate 6s ease-in infinite
}@keyframes animate {0% {filter: hue-rotate(0deg)}to {filter: hue-rotate(1turn)}
}</style>
</head>
<body>
<main class="main">
</main>