获取元素CSS样式
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2022-05-25 19:44:15
1 2 3 4 5 6 7 8 获取css样式 9 10 26 27 ProsperLee 28 29 #box{ 30 position: absolute; 31 left: 50%; 32 top: 100px; 3... ......
1 <!doctype html>
2 <html lang="en">
3
4 <head>
5 <meta charset="utf-8">
6 <meta name="viewport" content="width=device-width, initial-scale=1.0">
7 <meta http-equiv="x-ua-compatible" content="ie=edge">
8 <title>获取css样式</title>
9 </head>
10 <style>
11 #box{
12 position: absolute;
13 left: 50%;
14 top: 100px;
15 background-color: #fff000;
16 color: blueviolet;
17 font-size: 2em;
18 font-weight: bolder;
19 text-align: center;
20 width: 300px;
21 height: 100px;
22 line-height: 100px;
23 font-style: italic;
24 }
25 </style>
26 <body>
27 <div id="box">prosperlee</div>
28 <pre>
29 #box{
30 position: absolute;
31 left: 50%;
32 top: 100px;
33 background-color: #fff000;
34 color: blueviolet;
35 font-size: 2em;
36 font-weight: bolder;
37 text-align: center;
38 width: 300px;
39 height: 100px;
40 line-height: 100px;
41 font-style: italic;
42 }
43 </pre>
44 <script>
45 /**
46 * 获取css样式
47 * ele 元素
48 * prop 属性名
49 **/
50 function getstyle(ele, prop) {
51 if (window.getcomputedstyle) {
52 return window.getcomputedstyle(ele, null)[prop];
53 } else {
54 return ele.currentstyle[prop];
55 }
56 }
57 var el = document.getelementbyid('box');
58 console.log('position：' + getstyle(el,'position')); // absolute
59 console.log('left：' + getstyle(el,'left')); // 488.5px
60 console.log('font-size：' + getstyle(el,'font-size')); // 32px
61 console.log('font-style：' + getstyle(el,'font-style')); // italic
62 console.log('max-width：' + getstyle(el,'max-width')); // none
63 console.log('bottom：' + getstyle(el,'bottom')); // 532px
64 </script>
65 </body>
66
67 </html>
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