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2016.2.20 css3 animation 的学习

时间:2016-02-20 17:25:48      阅读:159      评论:0      收藏:0      [点我收藏+]

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使用css3 animation动画
 ‘use strict‘;
      var mousex, mousey;
      function tuo(el) {
        var move = function () {
          el.style.left = event.x - mousex + ‘px‘;
          el.style.top = event.y - mousey + ‘px‘;
        };
        el.addEventListener(‘mousedown‘, function () {
          mousex = event.x - el.offsetLeft;
          mousey = event.y - el.offsetTop;
          document.addEventListener(‘mousemove‘, move);
        });
        el.addEventListener(‘mouseup‘, function () {
          document.removeEventListener("mousemove", move, false);
        });
      };
      tuo(document.getElementById(‘box‘));
      tuo(document.getElementById(‘gradual‘));

 




<!
DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>js</title> <style type="text/css"> * { margin: 0; padding: 0; } #box{ width:400px; height:290px; position: absolute; left: 100px; top: 50px; overflow: hidden; box-shadow:0 0 30px rgba(0,0,0,1); background-size: cover; background-position: center; -webkit-animation-name: "loops"; -webkit-animation-duration: 10s; -webkit-animation-iteration-count: infinite; -webkit-animation-timing-function: linera;/*线性变化*/ } @-webkit-keyframes "loops" { 0% { background:url(http://d.hiphotos.baidu.com/image/w%3D400/sign=c01e6adca964034f0fcdc3069fc27980/e824b899a9014c08e5e38ca4087b02087af4f4d3.jpg) no-repeat; } 25% { background:url(http://b.hiphotos.baidu.com/image/w%3D400/sign=edee1572e9f81a4c2632edc9e72b6029/30adcbef76094b364d72bceba1cc7cd98c109dd0.jpg) no-repeat; } 50% { background:url(http://b.hiphotos.baidu.com/image/w%3D400/sign=937dace2552c11dfded1be2353266255/d8f9d72a6059252d258e7605369b033b5bb5b912.jpg) no-repeat; } 75% { background:url(http://g.hiphotos.baidu.com/image/w%3D400/sign=7d37500b8544ebf86d71653fe9f9d736/0df431adcbef76095d61f0972cdda3cc7cd99e4b.jpg) no-repeat; } 100% { background:url(http://c.hiphotos.baidu.com/image/w%3D400/sign=cfb239ceb0fb43161a1f7b7a10a54642/3b87e950352ac65ce2e73f76f9f2b21192138ad1.jpg) no-repeat; } } .gradual { width: 200px; height: 200px; position: absolute; left: 600px; top: 50px; -webkit-animation-name: gradual; -webkit-animation-duration: 10s; -webkit-animation-iteration-count: infinite; /*无线循环动画*/ -webkit-animation-timing-function: steps(4, start);/*帧数变化*/ /*steps的设置都是针对两个关键帧之间的*/ } @-webkit-keyframes gradual { 0% { background: red;} 25% { background: yellow;} 50% { background: blue;} 100% { background: black;} } </style> </head> <body> <div id="box"></div> <div class="gradual" id="gradual"></div>

</body>
 </html>
 

  


 

 
 

2016.2.20 css3 animation 的学习

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原文地址:http://www.cnblogs.com/xyxiao001/p/5203554.html

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