svg描边路径动画
<pre>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style>
html,body{
width:100%; height:100%;
}
/*1000是线条(path)的长度 stroke-dasharray和stroke-dashoffset的值要一样 stroke-dasharray的值就是每段的长度 stroke-dashoffset每段的偏移值 */
path {
stroke-dasharray: 1000;
stroke-dashoffset: 1000;
-webkit-animation: dash 1s linear infinite;
}
@-webkit-keyframes dash {
to {
stroke-dashoffset: 0;
}
}
.svgdonghua2{
display: none;
}
</style>
</head>
<body>
<div style="width:300px; height:300px;" class="ds">
<svg class="svgdonghua svgdonghua1" version="1.1" id="huaban1" xmlns="http://www.w3.org/2000/svg" width="31rem" height="31rem" viewBox="0 0 167 167" preserveAspectRatio="xMaxYMax meet" >
<path fill="none" stroke="#000000" stroke-miterlimit="10" d="M1.2,1.011c1.885-0.986,6.254-0.182,8.395-0.182
c12.128,0,24.256,0,36.383,0c13.245,0,26.49,0,39.735,0c3.012,0,5.487,0.271,8.421,1.165c6.376,1.941,12.309,2.474,18.951,2.665
c5.468,0.157,10.894,0.001,16.298-0.724c4.636-0.622,9.396-0.374,14.094-0.374c6.421,0,12.851-0.041,19.267,0.002
c0.196,24.462,0.439,48.991,0.21,73.474c-0.063,6.69-0.391,13.389-0.367,20.103c0.031,9.434,1.144,18.918-1.417,28.075
c-0.944,3.375-0.21,4.532,0.259,7.825c0.572,4.013,0.765,7.719,0.975,11.732c0.186,3.555,3.401,8.736,0.915,12.164
c-2.479,3.416-8.678,5.368-12.396,6.45c-6.105,1.777-12.556,1.496-18.925,1.563c-6.96,0.074-13.882,0.559-20.823,0.542
c-29.13-0.067-58.268,0.183-87.387,0.183c-4.539,0-9.118,0.193-13.652,0c-1.883-0.08-5.043-0.18-6.566-1.272
c-1.454-1.043-1.981-4.339-2.145-6.046c-0.266-2.767,0.061-5.548-0.264-8.322c-0.352-3.009-0.733-6.372-0.124-9.383
c0.97-4.795,1.534-9.665,2.355-14.517c0.391-2.309,0.553-4.632,0.898-6.944c0.434-2.9,1.448-5.635,1.842-8.542
c1.016-7.5,0.352-15.428,0.352-22.993c0-12.143,0.861-24.604-1.147-36.562C3.297,38.959,2.699,26.44,2.476,14.118
C2.394,9.625,1.047,5.583,1.018,1.193"/>
</svg>
</div>
</pre>
</body>
</html>
ps:svg设置宽度并不能修改里面的宽度 viewBox 167 167是svg原本的宽度和高度 单位是像素 不能去改他 改width和height只能等比例缩放 不能拉伸
更多svg自适应的理解查看 http://www.zhangxinxu.com/wordpress/2014/08/svg-viewport-viewbox-preserveaspectratio/