效果预览
在线演示按下右侧的“点击预览”按钮可以在当前页面预览,点击链接可以全屏预览。
https://codepen.io/comehope/pen/JvmBdE
可交互视频教程
此视频是可以交互的,你可以随时暂停视频,编辑视频中的代码。
请用 chrome, safari, edge 打开观看。
/p/pEgDAM/cp2edUD
源代码下载
本地下载每日前端实战系列的全部源代码请从 github 下载:
/comehope/front-end-daily-challenges
代码解读
定义 dom,容器中包含一行文本和3条做海浪特效的 <span>:
<div class="sea"><p class="title">the sea</p><span class="wave"></span><span class="wave"></span><span class="wave"></span></div>
居中显示:
html, body {height: 100%;display: flex;align-items: center;justify-content: center;background: linear-gradient(antiquewhite, navajowhite);}
设置容器样式:
.sea {width: 300px;height: 300px;background-color: whitesmoke;background-image: linear-gradient(darkblue,rgba(255, 255, 255, 0) 80%,rgba(255, 255, 255, 0.5));border-radius: 5px;box-shadow: 0 2px 30px rgba(0, 0, 0, 0.2);}
设置文字样式:
.sea {position: relative;}.sea .title {color: white;font-size: 24px;font-family: serif;text-align: center;line-height: 250px;text-transform: uppercase;letter-spacing: 0.4em;position: absolute;z-index: 1;width: 100%;}
制作海浪动画效果:
.sea .wave {position: absolute;top: -250px;left: -100px;width: 500px;height: 500px;background: deepskyblue;border-radius: 43%;filter: opacity(0.4);animation: drift linear infinite;}.sea .wave:nth-of-type(1) {animation-duration: 5s;}.sea .wave:nth-of-type(2) {animation-duration: 7s;}.sea .wave:nth-of-type(3) {animation-duration: 9s;}@keyframes drift {from {transform: rotate(360deg);}}
加大海浪的波动幅度,增加颜色差异:
.sea .wave {transform-origin: 50% 48%;}.sea .wave:nth-of-type(3) {background-color: orangered;filter: opacity(0.1);}
最后,隐藏容器外的内容:
.sea {overflow: hidden;}
大功告成!
原文地址:/a/1190000014895634