CSS3 实现简单轮播图

用css3动画实现图片切换效果，原理还是改变left值。只有最简单的自动播放功能，切换后短时间静止，通过最后的位置克隆第一张图片，实现无缝切换。

html结构

<div id="container">
        <ul class="pic">
            <li><a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ><img src="data:images/DSC01627.jpg" alt="pic1"></a></li>
            <li><a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ><img src="data:images/DSC01628.jpg" alt="pic2"></a></li>
            <li><a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ><img src="data:images/DSC02637.jpg" alt="pic3"></a></li>
            <li><a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ><img src="data:images/DSC01627.jpg" alt="pic1"></a></li><!-- 克隆第一张 -->
        </ul>    </div>

css样式

　　　　　*{
             margin:;
             padding:;
             text-decoration: none;
         }
        ul{
            list-style: none;
        }        #container{
            position: relative;
            width: 400px;
            height: 200px;
            overflow: hidden;/*隐藏溢出的图片*/
        }
        .pic{
            width:1600px;/*4张图的宽度*/
            position: absolute;/*基于父容器进行定位*/
            left:;
            animation-name: focusmap;
            animation-duration: 12s;
            animation-iteration-count: infinite;//动画调用可以简写        }
         @keyframes focusmap {
            0%,30%{
                left:;
            }
            35%,65%{
                left: -400px;
            }
            70%,99%{
                left: -800px;
            }
            100%{
                left: -1200px;
            }        }
        .pic li{
            float: left;
            background: #5dd94e;
        }        .pic li img {
            width: 400px;
            height: 200px;
        }