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  • 导航栏中加入自动弹出下拉菜单

    有什么问题请到评论中发表<br>

    <!-- http://www.mb5u.com/jscode -->

    <!-- bbs http://www.mb5u.com/bbs-->



    <!-- 把下列代码加入到head区内 -->

    <style type="text/css">



    #cssdropdown, #cssdropdown ul {

    padding: 0;

    margin: 0;

    list-style: none;

    }



    #cssdropdown li {

    float: left;

    position: relative;

    }



    .mainitems{

    border: 1px solid black;

    background-color: #FFEEC6;

    }



    .mainitems a{

    margin-left: 6px;

    margin-right: 8px;

    text-decoration: none;

    }



    .subuls{

    display: none;

    10em;

    position: absolute;

    top: 1.2em;

    left: 0;

    background-color: lightyellow;

    border: 1px solid black;

    }



    .subuls li{

    100%;

    }



    .subuls li a{

    text-decoration: underline;

    }



    #cssdropdown li>ul { /* to override top and left in browsers other than IE, which will position to the top right of the containing li, rather than bottom left */

    top: auto;

    left: auto;

    }



    #cssdropdown li:hover ul, li.over ul { /* lists nested under hovered list items */

    display: block;

    }



    #restofcontent { /*wrap rest of content of the page inside this div*/

    clear: left;

    }



    </style>



    <script type="text/javascript"><!--//--><![CDATA[//><!--

    startList = function() {

    if (document.all&&document.getElementById) {

    cssdropdownRoot = document.getElementById("cssdropdown");

    for (i=0; i<cssdropdownRoot.childNodes.length; i++) {

    node = cssdropdownRoot.childNodes[i];

    if (node.nodeName=="LI") {

    node.onmouseover=function() {

    this.className+=" over";

    }

    node.onmouseout=function() {

    this.className=this.className.replace(" over", "");

    }

    }

    }

    }

    }



    if (window.attachEvent)

    window.attachEvent("onload", startList)

    else

    window.onload=startList;



    //--><!]]></script>





    <!-- 把下列代码加入到body区内 -->

    <ul id="cssdropdown">



    <li class="mainitems">

    <a href="http://www.mb5u.com">CSS Gallery</a>

    <ul class="subuls">

    <li><a href="">Gordon Mac</a></li>

    <li><a href="">Juiced Thoughts</a></li>

    <li><a href="">The Daily Flight</a></li>

    <li><a href="">GrapeFruit</a></li>

    </ul>

    </li>



    <li class="mainitems">

    <a href="http://www.mb5u.com/">CSS Examples</a>

    <ul class="subuls" style=" 15em">

    <li><a href="">CSS2 Generated Content</a></li>

    <li><a href="">Custom scrollbar colors</a></li>

    <li><a href="">Markerless and "no indent" Lists</a></li>

    </ul>

    </li>



    </ul>
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  • 原文地址:https://www.cnblogs.com/zhijianliutang/p/2250768.html
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