纯css实现盒子伸展动画-html代码-BFW代码库

纯css实现盒子伸展动画

代码语言：html

所属分类：动画

代码描述：纯css实现盒子伸展动画

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>
.truck {
  width: 612px;
  height: 612px;
  transform: rotate(45deg);
  position: absolute;
  right: 50%;
  top: 50%;
  margin-top: -306px;
  margin-right: -306px;
}
.box {
  width: 100px;
  height: 100px;
  position: relative;
  float: right;
  margin: 1px;
}
.box:before {
  content: "";
  position: absolute;
  border-bottom: 51px solid #035a81;
  border-left: 0 solid transparent;
  border-right: 0 solid transparent;
  height: 0;
  width: 100%;
  bottom: 0;
  box-sizing: border-box;
  animation-name: saskiaeffect;
  animation-duration: 5s;
  animation-iteration-count: infinite;
  animation-timing-function: ease;
}
.box:after {
  content: "";
  position: absolute;
  border-top: 51px solid #035a81;
  border-left: 0 solid transparent;
  border-right: 0 solid transparent;
  height: 0;
  width: 100%;
  top: 0;
  box-sizing: border-box;
  animation-name: saskiaeffect;
  animation-duration: 5s;
  animation-iteration-count: infinite;
  animation-timing-function: ease;
}
@keyframes saskiaeffect {
  0% {
    border-left: 0 solid transparent;
    border-right: 0 solid transparent;
  }
  50% {
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
  }
  100% {
    border-left: 0 solid transparent;
    border-right: 0 solid transparent;
  }
}
@-moz-keyframes saskiaeffect {
  0% {
    border-left: 0 solid transparent;
    border-right.........完整代码请登录后点击上方下载按钮下载查看