div+css布局实现红绿灯动画效果-html代码-BFW代码库

div+css布局实现红绿灯动画效果

代码语言：html

代码描述：div+css布局实现红绿灯动画效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en" >

<head>

  <meta charset="UTF-8">

  
  
  
  
<style>
body {
  margin: 0px;
  background: #fca701;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.traffic-light {
  position: relative;
  background: #222;
  border-radius: 10px;
  padding: 16px;
  box-shadow: inset 0 0 0px 5px #2a2a2a;
}

.light-red,
.light-yellow,
.light-green {
  position: relative;
  margin: 16px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: repeating-linear-gradient(#333, #443 5px);
  animation-duration: 4s;
  animation-iteration-count: infinite;
  animation-timing-function: step-end;
}

.light-red {
  animation-name: lightUpRed;
}

.light-yellow {
  animation-name: lightUpYellow;
}

.light-green {
  animation-name: lightUpGreen;
}

@keyframes lightUpRed {
  0% {
    background: repeating-linear-gradient(#f00, #e00 5px);
    box-shadow: 0 0 40px #f00;
    z-index: 1;
  }
  35% {
    background: repeating-linear-gradient(#443, #333 5px);
    box-shadow: none;
    z-index: 0;
  }
}

@keyframes lightUpYellow {
  80% {
    background: repeating-linear-gra.........完整代码请登录后点击上方下载按钮下载查看