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几个CSS-content的小例子

时间:2016-08-23 23:17:02      阅读:245      评论:0      收藏:0      [点我收藏+]

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 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <title>Document</title>
 6     <style type="text/css">
 7         .demo1{
 8             position: relative;
 9             width: 200px;
10             height: 50px;
11             line-height: 50px;
12             text-align: center;
13             overflow: hidden;
14         }
15         .demo1:before{
16             content: ‘我是‘;
17         }
18         .demo1:after{
19             content: ‘‘;
20             position: absolute;
21             top: -50px;
22             left: 0;
23             width: 100%;
24             height: 100%;
25             transition: top .3s linear;
26             background: rgba(0,0,0,.3);
27         }
28         .demo1:hover:after{
29             top: 0;
30             transition: top .3s linear;
31         }
32 
33         .demo2:before{
34             content: url(‘../images/gg.png‘);
35         }
36 
37         .demo3:after{
38             content: ‘_‘attr(data-content)‘:‘attr(class);
39         }
40         
41         .demo4 p{
42             counter-increment: mycount 1;
43         }
44         .demo4 p:before{
45             content:‘第‘counter(mycount)‘章 ‘;
46         }
47     </style>
48 </head>
49 <body>
50     <h1>CSS-content应用</h1>
51     <article>
52         <header>
53             <h2>content:‘‘</h2>
54         </header>
55         <div class="demo1">content on here</div>
56     </article>
57     <article>
58         <header>
59             <h2>content:url(‘‘)</h2>
60         </header>
61         <div class="demo2">url属性加载图片</div>
62     </article>
63     <article>
64         <header>
65             <h2>content:attr()</h2>
66         </header>
67         <div class="demo3" data-content="我是">attr属性可以调用当前的属性值</div>
68     </article>
69     <article>
70         <header>
71             <h2>content:counter</h2>
72         </header>
73         <div class="demo4">
74             <p>主题</p>
75             <p>主题</p>
76             <p>主题</p>
77             <p>主题</p>
78         </div>
79     </article>
80 </body>
81 </html>

效果如下: 

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几个CSS-content的小例子

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原文地址:http://www.cnblogs.com/marunzhou/p/5800921.html

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