纯css轮播(焦点)

<div class="iteye-blog-content-contain" style="font-size: 14px;">
<pre name="code" class="html"><!DOCTYPE html>
<html>
<head>
    <title> 飛天网事--纯CSS代码实现图片轮播 </title>
    <meta charset="utf-8" />
    <meta name="description" content="飛天网事，WEB前端开发，纯css3代码图片轮播，HTML5+CSS3精彩案例" />
    <meta name="keywords" content="飛天网事，WEB前端开发，HTML5，CSS3，jQuery，" />
    <meta name="author" content="R.tian @eduppp.cn 2015">
    <link rel="shortcut icon" href="http://eduppp.cn/images/logo4.gif" />
    <link rel="apple-touch-icon" href="http://eduppp.cn/images/logo.gif" />
    <style type="text/css">
        #frame {/*----------图片轮播相框容器----------*/
            position: absolute; /*--绝对定位，方便子元素的定位*/
            width: 300px;
            height: 200px;
            overflow: hidden;/*--相框作用，只显示一个图片---*/
            border-radius:5px;
        }
        #dis {/*--绝对定位方便li图片简介的自动分布定位---*/
            position: absolute;
            left: -50px;
            top: -10px;
            opacity: 0.5;
        }
        #dis li {
            display: inline-block;
            width: 200px;
            height: 20px;
            margin: 0 50px;
            float: left;
            text-align: center;
            color: #fff;
            border-radius: 10px;
            background: #000;
        }
        #photos img {
            float: left;
            width:300px;
            height:200px;
        }
        #photos {/*---设置总的图片宽度--通过位移来达到轮播效果----*/
            position: absolute;z-index:9;
            width: calc(300px * 5);/*---修改图片数量的话需要修改下面的动画参数*/
        }
        .play{
            animation: ma 20s ease-out infinite alternate;/**/
        }
        @keyframes ma {/*---每图片切换有两个阶段：位移切换和静置。中间的效果可以任意定制----*/
            0%,20% {        margin-left: 0px;       }
            25%,40% {       margin-left: -300px;    }
            45%,60% {       margin-left: -600px;    }
            65%,80% {       margin-left: -900px;    }
            85%,100% {      margin-left: -1200px;   }
        }
        .num{
            position:absolute;z-index:10;
            display:inline-block;
            right:10px;top:165px;
            border-radius:100%;
            background:#f00;
            width:25px;height:25px;
            line-height:25px;
            cursor:pointer;
            color:#fff;
            text-align:center;
            opacity:0.8;
        }
        .num:hover{background:#00f;}
        .num:hover,#photos:hover{animation-play-state:paused;}
        .num:nth-child(2){margin-right:30px}
        .num:nth-child(3){margin-right:60px}
        .num:nth-child(4){margin-right:90px}
        .num:nth-child(5){margin-right:120px}
        #a1:hover ~ #photos{animation: ma1 .5s ease-out forwards;}
        #a2:hover ~ #photos{animation: ma2 .5s ease-out forwards;}
        #a3:hover ~ #photos{animation: ma3 .5s ease-out forwards;}
        #a4:hover ~ #photos{animation: ma4 .5s ease-out forwards;}
        #a5:hover ~ #photos {animation: ma5 .5s ease-out forwards;}
        @keyframes ma1 {0%{margin-left:-1200px;}100%{margin-left:-0px;} }
        @keyframes ma2 {0%{margin-left:-1200px;}100%{margin-left:-300px;}   }
        @keyframes ma3 {100%{margin-left:-600px;}   }
        @keyframes ma4 {100%{margin-left:-900px;}   }
        @keyframes ma5 {100%{margin-left:-1200px;} }
    </style>
</head>
<body>
<div id="frame" >
    <a id="a1" class="num">1</a>
    <a id="a2" class="num">2</a>
    <a id="a3" class="num">3</a>
    <a id="a4" class="num">4</a>
    <a id="a5" class="num">5</a>
    <div id="photos" class="play">
        <img src="http://eduppp.cn/images/0/1.jpg" >
        <img src="http://eduppp.cn/images/0/3.jpg" >
        <img src="http://eduppp.cn/images/0/4.jpg" >
        <img src="http://eduppp.cn/images/0/5.jpg" >
        <img src="http://eduppp.cn/images/0/2.jpg" >
        <ul id="dis">
            <li>中国标志性建筑：看看</li>
            <li>中国标志性建筑：信息</li>
            <li>中国标志性建筑：安安</li>
            <li>中国标志性建筑：人人</li>
            <li>中国标志性建筑：引用</li>
        </ul>
    </div>
</div>
</body>
</html></pre>
<p> </p>
</div>

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