css3 实现波浪（wave）效果 

 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>Document</title>
 9     <style>
10         html,
11         body {
12             height: 100%;
13             display: flex;
14             align-items: center;
15             justify-content: center;
16             background: linear-gradient(antiquewhite, navajowhite);
17         }
18         
19         .sea {
20             width: 300px;
21             height: 300px;
22             background-color: whitesmoke;
23             background-image: linear-gradient(darkblue, rgba(255, 255, 255, 0) 80%, rgba(255, 255, 255, 0.5));
24             border-radius: 5px;
25             box-shadow: 0 2px 30px rgba(0, 0, 0, 0.2);
26             position: relative;
27             overflow: hidden;
28         }
29         
30         .sea .title {
31             color: white;
32             font-size: 24px;
33             font-family: serif;
34             text-align: center;
35             line-height: 252px;
36             text-transform: uppercase;
37             letter-spacing: 0.4em;
38             position: absolute;
39             z-index: 1;
40             width: 100%;
41         }
42         
43         .sea .wave {
44             position: absolute;
45             top: -250px;
46             left: -100px;
47             width: 500px;
48             height: 500px;
49             background: deepskyblue;
50             border-radius: 43%;
51             filter: opacity(0.4);
52             animation: drift linear infinite;
53             transform-origin: 50% 48%;
54         }
55         
56         .sea .wave:nth-of-type(1) {
57             animation-duration: 5s;
58         }
59         
60         .sea .wave:nth-of-type(2) {
61             animation-duration: 7s;
62         }
63         
64         .sea .wave:nth-of-type(3) {
65             animation-duration: 9s;
66             background-color: orangered;
67             filter: opacity(0.1);
68         }
69         
70         @keyframes drift {
71             from {
72                 transform: rotate(360deg);
73             }
74         }
75     </style>
76 </head>
77 
78 <body>
79     <div class="sea">
80         <p class="title">the sea</p>
81         <span class="wave"></span>
82         <span class="wave"></span>
83         <span class="wave"></span>
84     </div>
85 </body>
86 
87 </html>
View Code

 

posted @ 2018-12-27 16:26  叶子玉  阅读(1887)  评论(0)  编辑  收藏  举报