CSS3实现开门动画

时间：2023-12-16 10:10:08
<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
 <title></title>
 <style>
 *{
  margin: 0;
  padding: 0;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
 }
 html,body{
  height: 100%;
  min-width: 320px;
  overflow: hidden;
 }
 .bg{
  position: relative;
  width: 100%;
  height: 100%;
  background: #fff;
 }
 .door{
  position: absolute;
  width: 50%;
  height: 100%;
  background: #1391ff;
  -webkit-backface-visibility: visible !important;
    backface-visibility: visible !important;
    -webkit-transform: translate3d(0,0,0);
  transform: translate3d(0,0,0);
 }
 .door-left{
  z-index: 90;
  left: 0;
  top: 0;
 }
 .door-right{
  z-index: 89;
  right: 0;
  top: 0;
 }
 .door-left:after{
  content:"";
  position: absolute;
  left: 100%;
  top: -50%;
  width: 1px;
  height: 200%;
  background: #000;
  -webkit-transform: scale(.5);
  transform: scale(.5);
 }
 .lock{
  position: absolute;
  left:50%;
  top: 50%;
  margin-left: -25px;
  margin-top: -25px;
  width: 50px;
  height: 50px;
  background: red;
  color: #fff;
  line-height: 50px;
  text-align: center;
  border-radius: 50%;
  -webkit-transition: opacity 1s ease 0s;
  transition: opacity 1s ease 0s;
  z-index: 98;
 }
 .openLeft{
  animation:openLeft 2s ease both;
  -webkit-animation:openLeft 2s ease both;
 }
 .openRight{
  animation:openRight 2s ease both;
  -webkit-animation:openRight 2s ease both;
 }
 @-webkit-keyframes openLeft {
   0% {
     -webkit-transform-origin: 0 40%;
     -webkit-transform: perspective(0px) rotateY(0deg);
   }
   100% {
     -webkit-transform-origin: 0 40%;
     -webkit-transform: perspective(600px) rotateY(90deg);
   }
 }
 @keyframes openLeft {
   0% {
     transform-origin: 0 40%;
     transform: perspective(0px) rotateY(0deg);
   }
   100% {
     transform-origin: 0 40%;
     transform: perspective(600px) rotateY(90deg);
   }
 }
 @-webkit-keyframes openRight {
   0% {
     -webkit-transform-origin: 100% 40%;
     -webkit-transform: perspective(0px) rotateY(0deg);
   }
   100% {
     -webkit-transform-origin: 100% 40%;
     -webkit-transform: perspective(600px) rotateY(-90deg);
   }
 }
 @keyframes openRight {
   0% {
     transform-origin: 100% 40%;
     transform: perspective(0px) rotateY(0deg);
   }
   100% {
     transform-origin: 100% 40%;
     transform: perspective(600px) rotateY(-90deg);
   }
 }
 </style>
</head>
<body>
 <div class="bg">
  <section>
   <div class="door door-left"></div>
   <div class="door door-right"></div>
   <div class="lock">开</div>
  </section>
  <section class="page2">
  </section>
 </div>
 <script>
 document.querySelector(".lock").onclick=function(){
  document.querySelector(".door-left").classList.add("openLeft");
  document.querySelector(".door-right").classList.add("openRight");
  this.style.opacity=0;
 }
 </script>
</body>
</html>
演示地址：  开门

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