效果预览
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/oybWBy
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。
https://scrimba.com/p/pEgDAM/cG64puy
源代码下载
每日前端实战系列的全部源代码请从 github 下载:
https://github.com/comehope/front-end-daily-challenges
代码解读
定义 dom,容器中包含 5 个子元素:
<div class="equalizer"> <span></span> <span></span> <span></span> <span></span> <span></span> </div>
居中显示:
body { margin: 0; height: 100vh; display: flex; align-items: center; justify-content: center; background-color: black; }
定义均衡器的样式:
.equalizer { width: 10em; height: 10em; display: flex; justify-content: space-between; } .equalizer span { width: 1.5em; background: linear-gradient(0deg, green, yellow, red); }
定义均衡器竖条的动画效果:
.equalizer span { animation: up-and-down 2s linear infinite; } @keyframes up-and-down{ 0%, 100% { clip-path: inset(27% 0 0 0); }10% { clip-path: inset(17% 0 0 0); } 20% { clip-path: inset(55% 0 0 0); } 30% { clip-path: inset(30% 0 0 0); } 40% { clip-path: inset(13% 0 0 0); } 50% { clip-path: inset(38% 0 0 0); } 60% { clip-path: inset(80% 0 0 0); } 70% { clip-path: inset(21% 0 0 0); } 80% { clip-path: inset(0% 0 0 0); } 90% { clip-path: inset(36% 0 0 0); }
}
最后,设置各竖条依次动画:
.equalizer span { animation: up-and-down 2s linear infinite calc(-1 * 0.4s * (var(--n) - 1)); } .equalizer span:nth-child(1) { --n: 1; } .equalizer span:nth-child(2) { --n: 2; } .equalizer span:nth-child(3) { --n: 3; } .equalizer span:nth-child(4) { --n: 4; } .equalizer span:nth-child(5) { --n: 5; }
大功告成!
原文地址:https://segmentfault.com/a/1190000015157160
原文地址:https://www.cnblogs.com/lalalagq/p/10000331.html
时间: 2024-11-04 15:01:47