js 实现仿百度换肤效果

图片自行换掉即可查看效果,原理就是基于tab切换的效果实现的

 

效果图

 1 DOCTYPE html>
 2 <html>
 3 
 4 <head>
 5   <meta charset="UTF-8">
 6   <meta name="viewport" content="width=device-width, initial-scale=1.0">
 7   <title>仿百度换肤效果title>
 8   <style>
 9     body {
10       height: 100%;
11       background: url(img/bg1.jpg) no-repeat top center;
12       background-size: cover;
13     }
14 
15     * {
16       margin: 0;
17       padding: 0;
18     }
19 
20     ul,
21     li {
22       list-style: none;
23     }
24 
25     .list li img {
26       width: 100%;
27     }
28 
29     .list {
30       display: flex;
31       justify-content: center;
32       margin-top: 100px;
33     }
34 
35     .list li {
36       width: 150px;
37       cursor: pointer;
38     }
39 
40     .trans {
41       transition: all .5s;
42     }
43   style>
44 head>
45 
46 <body>
47   <ul class="list">
48     <li><img src="img/bg1.jpg" alt="">li>
49     <li><img src="img/bg2.jpg" alt="">li>
50     <li><img src="img/bg3.jpg" alt="">li>
51     <li><img src="img/bg4.jpg" alt="">li>
52   ul>
53 
54   <script>
55     var imgs = document.querySelector('.list').querySelectorAll('img');
56     for (var i = 0; i < imgs.length; i++) {
57       imgs[i].onclick = function () {
58         // console.log(this.src)
59         document.body.style.className = 'trans';
60         document.body.style.backgroundImage = 'url(' + this.src + ')';
61       }
62     }
63   script>
64 body>
65 
66 html>

 

 

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