2-6 复杂的背景图案_html/css_WEB-ITnose

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知识储备

1.2-5小节的linear-gradient()

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展示

lea.verou.me/css3patterns

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测试

示例1html

<ul>      <li></li>    <li></li>    <li></li>    <li></li>    <li></li>     <li></li>    <li></li>     <li></li>      <li></li></ul>

css

ul{    list-style: none;}li{    display: inline-block;    margin:  20px;    list-style: none;    width: 300px;    height: 300px;    border-radius: 50%;    box-shadow: 0 0 0 15px rgba(255,255,255,.4) inset;    border: 3px dashed #333;}li:nth-child(1){    background: white;   background-image:  linear-gradient(90deg,rgba(200,0,0,0.5) 50%,transparent 0),      linear-gradient(rgba(200,0,0,0.5) 50%,transparent 0);     background-size: 30px 30px;}

思路：1.先画一条竖线

linear-gradient(90deg,rgba(200,0,0,0.5) 50%,transparent 0)

2.再画一条横线

linear-gradient(rgba(200,0,0,0.5) 50%,transparent 0)

3.设置重复的格子大小

background-size: 30px 30px;

黑线围起来的格子

示例二

示例二

css

background: #58a;background-image:linear-gradient(90deg ,#fff 2px ,transparent 0),linear-gradient(#fff 2px ,transparent 0),linear-gradient(90deg,hsla(0,0%,100%,.3) 1px ,transparent 0),linear-gradient(hsla(0,0%,100%,.3) 1px ,transparent 0);background-size: 75px 75px,75px 75px,15px 15px ,15px 15px;

思路：1.制造粗白线纹理

linear-gradient(90deg ,#fff 2px ,transparent 0),linear-gradient(#fff 2px ,transparent 0)background-size: 75px 75px,75px 75px

2.同理制造细条纹Tips:将格子缩小

总结：第一次看到就觉得惊奇，CSS竟然能做出如此的复杂的图案。少年仍需努力啊！