纯css实现svg动画过渡效果-html代码-BFW代码库

纯css实现svg动画过渡效果

代码语言：html

所属分类：动画

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>

    <link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Varela+Round&amp;display=swap'>
    <style>
        .nav {
            --color: #ffffff;
            background: none;
            width: 100px;
            height: 56px;
            position: relative;
            display: -webkit-box;
            display: flex;
            -webkit-box-pack: center;
            justify-content: center;
            -webkit-box-align: center;
            align-items: center;
        }
        .nav svg {
            fill: none;
            stroke: var(--color);
            stroke-width: 7px;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .nav svg use:nth-of-type(1) {
            opacity: 1;
            stroke-dashoffset: 221;
            stroke-dasharray: 46 249;
            -webkit-transition: stroke-dashoffset.12s linear .2s, stroke-dasharray .12s linear .2s, opacity 0s linear .2s;
            transition: stroke-dashoffset.12s linear .2s, stroke-dasharray .12s linear .2s, opacity 0s linear .2s;
        }
        .nav svg use:nth-of-type(2) {
            -webkit-animation: stroke-animation-reverse 1.2s ease-out forwards;
            animation: stroke-animation-reverse 1.2s ease-out forwards;
        }
        .nav input {
            position: absolute;
            height: 100%;
            width: 100%;
            z-index: 2;
            cursor: pointer;
            opacity: 0;
        }
        .nav input:checked + svg use:nth-of-type(1) {
            stroke-dashoffset: 175;
            stroke-dasharray: 0 295;
            opacity: 0;
            -webkit-transition: stroke-dashoffset.07s linear .07s, stroke-dasharray .07s linear .07s, opacity 0s linear .14s;
            transition: stroke-dashoffset.07s linear .07s, stroke-dasharray .07s linear .07s, opacity 0s linear .14s;
        }
        .nav input:checked + svg use:nth-of-type(2) {
            -webkit-animation: stroke-animation 1.2s ease-out forwards;
            animation: stroke-animation 1.2s ease-out forwards;
        }

@-webkit-keyframes stroke-animation {
            0% {
                stroke-dashoffset: 295;
                stroke-dasharray: 25 270;
            }
            50% {
                stroke-dashoffset: 68;
                stroke-dasharray: 59 236;
            }
            65% {
                stroke-dashoffset: 59;
                stroke-dasharray: 59 236;
            }
            100% {
                stroke-dashoffset: 68;
                stroke-dasharray: 59 236;
            }
        }

@keyframes stroke-animation {
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