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CSS实现商城分类导航效果(hover选择器)

学完制作出这个导航效果之后,收获最多的是了解了hover选择器的功能,:hover 选择器用于选择鼠标指针浮动在上面的元素。在鼠标移到元素上时向此元素添加特殊的样式(CSS)。例如:改变鼠标悬停处的元素或其子元素的边框,颜色,大小,显示等。

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<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <style type="text/css">
            body {
                padding: 0;
                font-size: 10pt;
            }
            
            .topmenu {
                display: block;
                width: 220px;
                border: 2px solid #e4393c;
                margin: 0;
                padding: 0;
            }
            
            .toptitle {
                height: 40px;
                line-height: 40px;
                text-align: left;
                font-size: 11pt;
                font-weight: bold;
                color: white;
                background: #E4393C;
                padding-left: 20px;
            }
            
            .topmenu li {
                height: 30px;
                line-height: 30px;
                font-size: 11pt;
                /*去除li小圆点*/
                list-style-type: none;
                text-align: left;
                padding-left: 8px;
                z-index: 3;
                background-image: url(../../img/20161116/1.jpg);
                background-repeat: no-repeat;
                background-position: right;
            }
            /*hover效果为鼠标移动到上面触发相应效果*/
            
            .topmenu li:hover {
                border: 1px solid #DDD;
                border-right: 0;
                box-shadow: 0 0 8px #DDD;
                -webkit-box-shadow: 0 0 8px #DDD;
                background-image: none;
            }
            
            .topmenu li a {
                /*去除下划线*/
                text-decoration: none;
                color: #313131;
            }
            
            .topmenu li a:hover {
                text-decoration: underline;
                font-weight: bold;
                color: #e4393c;
            }
            
            .submenu {
                display: none;
                width: 715px;
                left: 220px;
                position: absolute;
                top: 40px;
                border: 1px solid #DDD;
                z-index: 4;
                background: white;
                box-shadow: 0 0 8px #DDD;
                -webkit-box-shadow: 0 0 8px #DDD;
            }
            /*鼠标移上时显示类submenu模块*/
            .topmenu li:hover .submenu {
                display: block;
            }
            
            .topmenu li:hover span {
                background: white;
                display: inline-block;
                z-index: 20;
                width: 20px;
                height: 30px;
                float: right;
                position: relative;
            }
            
            .leftdiv {
                background: white;
                float: left;
                width: 490px;
                margin: 5px;
            }
            
            .rightdiv {
                background: white;
                float: left;
                width: 200px;
                margin: 5px;
            }
            .leftdiv dl{
                display: block;
                border-bottom: 1px solid #EEE;
                padding-bottom: 6px;
                overflow: hidden;
            }
            .leftdiv dl dt{
                display: block;
                float: left;
                width: 60px;
                text-align: right;
                height: 22px;
                line-height: 22px;
                padding-right: 6px;
            }
            
            .leftdiv dl dt a{
                color: #e4393c;
                font-weight: bold;
                text-decoration: underline;
                font-size: 10pt;
            }
            .leftdiv dl dd{
                display: block;
                overflow: hidden;
            }
            .leftdiv dl dd a{
                /* 在此插入CSS样式 */
                color: #737373;
                font-size: 9pt;
                padding: 0 8px;
                height: 14px;
                line-height: 14px;
                margin: 4px 0;
            }
            
            .rightdiv dl dd{
                margin: 3px 0;
            }
            
            .rightdiv dl dt{
                color: #e4393c;
                font-weight: bold;
                font-size: 10pt;
            }
            
            .rightdiv dl dd a{
                font-size: 9pt;
                color: #737373;
                line-height: 22px;
            }
            .rightdiv dl dd a:hover{
                color: #737373;
                font-weight: normal;
            }
        </style>
    </head>

    <body>
        <ul class="topmenu">
            <div class="toptitle">
                全部商品分类
            </div>
            <li><a href="#">图书、音像、数字商品</a><span></span> 
            <div class="submenu">
                <div class="leftdiv">
                    <dl>
                        <dt><a href="#">电子书</a></dt>
                        <dd>
                            <a href="#">免费</a> <a href="#">小说</a> <a href="#">励志与成功</a> <a href="#">婚恋/两性</a>
                            <a href="#">文学</a> <a href="#">经管</a> <a href="#">畅读VIP</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">数字音乐</a></dt>
                        <dd>
                            <a href="#">通俗流行</a> <a href="#">古典音乐</a> <a href="#">摇滚说唱</a> <a href="#">爵士蓝调</a>
                            <a href="#">乡村民谣</a> <a href="#">有声读物</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">音像</a></dt>
                        <dd>
                            <a href="#">音乐</a> <a href="#">影视</a> <a href="#">教育音像</a> <a href="#">游戏</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">文艺</a></dt>
                        <dd>
                            <a href="#">小说</a> <a href="#">文学</a> <a href="#">青春文学</a> <a href="#">传记</a> <a
                                href="#">艺术</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">人文社科</a></dt>
                        <dd>
                            <a href="#">历史</a> <a href="#">心理学</a> <a href="#">政治/军事</a> <a href="#">国学/古籍</a>
                            <a href="#">哲学/宗教</a> <a href="#">社会科学</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">经管励志</a></dt>
                        <dd>
                            <a href="#">经济</a> <a href="#">金融与投资</a> <a href="#">管理</a> <a href="#">励志与成功</a>
                        </dd>
                    </dl>
                    <dl class="fore7">
                        <dt><a href="#">生活</a></dt>
                        <dd>
                            <a href="#">家教与育儿</a> <a href="#">旅游/地图</a> <a href="#">烹饪/美食</a> <a href="#">时尚/美妆</a>
                            <a href="#">家居</a> <a href="#">婚恋与两性</a> <a href="#">娱乐/休闲</a> <a href="#">健身与保健</a>
                            <a href="#">动漫/幽默</a> <a href="#">体育/运动</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">科技</a></dt>
                        <dd>
                            <a href="#">科普</a> <a href="#">IT</a> <a href="#">建筑</a> <a href="#">医学</a> <a href="#">
                                工业技术</a> <a href="#">电子/通信</a> <a href="#">农林</a> <a href="#">科学与自然</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">少儿</a></dt>
                        <dd>
                            <a href="#">少儿</a> <a href="#">0-2岁</a> <a href="#">3-6岁</a> <a href="#">7-10岁</a>
                            <a href="#">11-14岁</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">教育</a></dt>
                        <dd>
                            <a href="#">教材</a> <a href="#">中小学教辅</a> <a href="#">考试</a> <a href="#">外语学习</a>
                        </dd>
                    </dl>
                    <dl>
                        <dt><a href="#">其它</a></dt>
                        <dd>
                            <a href="#">英文原版书</a> <a href="#">港台图书</a> <a href="#">工具书</a> <a href="#">套装书</a>
                            <a href="#">杂志/期刊</a>
                        </dd>
                    </dl>
                </div>
                <div class="rightdiv">
                    <dl>
                        <dd>
                            <a href="http://sale.jd.com/act/1XDZ6ShE5M7tTrl.html">
                                <img src="http://img30.360buyimg.com/erpVCAare/g16/M00/0B/1B/rBEbRlOCFcoIAAAAAAArMNB2tlkAACTlwDgVG8AACtI514.jpg"
                                    width="194" height="70" title="\家电">
                            </a>
                        </dd>
                        <dd>
                            <a href="http://sale.jd.com/act/v8kJIaPmsMGuebpH.html">
                                <img src="http://img30.360buyimg.com/erpVCAare/g16/M00/0B/19/rBEbRlOAiHUIAAAAAAAx8X2c6oIAACTCAP56A4AADIJ112.jpg"
                                    width="194" height="70" title="小家电--三请聚宝盆">
                            </a>
                        </dd>
                    </dl>
                    <dl>
                        <dt>推荐品牌</dt>
                        <dd>
                            <a href="#">美的官方旗舰店</a>
                        </dd>
                        <dd>
                            <a href="#">苏泊尔旗舰店</a>
                        </dd>
                        <dd>
                            <a href="#">九阳旗舰店</a>
                        </dd>
                        <dd>
                            <a href="#">东菱旗舰店</a>
                        </dd>
                        <dd>
                            <a href="#">海尔统帅旗舰店</a>
                        </dd>
                        <dd>
                            <a href="#">小熊旗舰店</a>
                        </dd>
                    </dl>
                    <img src="wii.png" class="rightPic" />
                </div>
            </div>
        </li>
            <li>
                <a href="#">家用电器</a>
            </li>
            <li>
                <a href="#">手机、数码</a>
            </li>
            <li>
                <a href="#">电脑、办公</a>
            </li>
            <li>
                <a href="#">家居、家具、家装、厨具</a>
            </li>
            <li>
                <a href="#">服饰内衣、珠宝首饰</a>
            </li>
            <li>
                <a href="#">个护化妆</a>
            </li>
            <li>
                <a href="#">鞋靴、箱包、钟表、奢侈品</a>
            </li>
            <li>
                <a href="#">运动户外</a>
            </li>
            <li>
                <a href="#">汽车用品</a>
            </li>
        </ul>
    </body>

</html>
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CSS实现商城分类导航效果(hover选择器)