linear-gradient 常用来制作渐变，如
（色彩渣，我就随便找个颜色举例）
css代码如下
background:linear-gradient(45deg,#ff0000 0%,#ffb600 11%,#fff600 22%,#a5ff00 33%,#00a9ff 44%,#0400ff 55%,#8a00fc 66%,#ff00e9 77%,#ff0059 88%,#ff0000 100%);
如果想制作条纹，很简单啦
background:linear-gradient(45deg,#ff0000 0%,#ff0000 11%,
#ffb600 11%,#ffb600 22%,
#fff600 22%,#fff600 33%,
#a5ff00 33%,#a5ff00 44%,
#00a9ff 44%,#00a9ff 55%,
#0400ff 55%,#0400ff 66%,
#8a00fc 66%,#8a00fc 77%,
#ff00e9 77%,#ff00e9 88%,
#ff0000 88%,#ff0000 100%);
效果
径向同理
background:radial-gradient(#ff0000 0%,#ff0000 11%,
#ffb600 11%,#ffb600 22%,
#fff600 22%,#fff600 33%,
#a5ff00 33%,#a5ff00 44%,
#00a9ff 44%,#00a9ff 55%,
#0400ff 55%,#0400ff 66%,
#8a00fc 66%,#8a00fc 77%,
#ff00e9 77%,#ff00e9 88%,
#ff0000 88%,#ff0000 100%);
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原文：http://www.cnblogs.com/gongchengshi1803275951/p/4086969.html