css实现悬浮下拉菜单(css实现下拉框)

编程之家2026-07-02721次浏览

其实css实现悬浮下拉菜单的问题并不复杂，但是又很多的朋友都不太了解css实现下拉框，因此呢，今天小编就来为大家分享css实现悬浮下拉菜单的一些知识，希望可以帮助到大家，下面我们一起来看看这个问题的分析吧！

HTML中鼠标悬浮时的下拉菜单用CSS怎么做

这个你需要用到伪类:hover

:hover伪类在鼠标移到元素上时向此元素添加特殊的样式。

例子1

<style>

a:hover{color:#FF00FF}

</style>

当鼠标移动到a标签上的时候，改变a标签的文字颜色深入用法，当移动到某标签的时候改变其它标签的样式：

例子：

<ulclass="dingjicaidan">

<li>

菜单

</a>

<ulclass="tanchucaidan">

<li>

弹出菜单1

</li>

<li>

弹出菜单2

</li>

</ul>

</li>

</ul>

<style>

.tanchucaidan{display:none;}/*设置弹出菜单默认隐藏*/

.dingjicaidanli:hoverul{display:block;}

/*当鼠标移动到dingjicaidan下的li标签时，改变li下的ul标签的display属性（显示出来）*/

</style>其实就这么简单，自己琢磨下吧，纯手打，望采纳！

html 怎么做鼠标悬浮菜单上的选项能出现下拉菜单

html做鼠标悬浮菜单上的选项能出现下拉菜单，CSS+JS做出此效果。

<body>内代码为：

<ULid=fm>

<LI><Arel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="#">一级菜单栏目</A>

<UL>

</LI>

<UL>

</UL></LI>

<UL>

</UL></LI></UL>为了突出效果，做的CSS样式代码为：

<STYLEtype=text/css>

*{margin:0;padding:0;border:0;}

#fm{line-height:24px;list-style-type:none;background:#666;}/*设置盒子的行高，去掉标记，设置背景颜色*/

#fma{display:block;width:80px;text-align:center;}/*设置A标签为块元素不显示，宽度，居中*/

#fma:link{color:#666;text-decoration:none;}/*设置未访问的链接样式*/

#fma:visited{color:#666;text-decoration:none;}/*设置已访问的链接样式*/

#fma:hover{color:#FFF;text-decoration:none;font-weight:bold;}/*当有鼠标悬停在链接上的颜色*/

#fmli{float:left;width:150px;background:#CCC;}

#fmlia:hover{background:#999;}

#fmliul{line-height:27px;list-style-type:none;text-align:left;left:-999em;width:80px;position:absolute;}

#fmliulli{float:left;width:80px;background:#F6F6F6;}

#fmliula{display:block;width:80px;width:80px;text-align:left;padding-left:5px;}

#fmliula:link{color:#666;text-decoration:none;}

#fmliula:visited{color:#666;text-decoration:none;}

#fmliula:hover{color:#F3F3F3;text-decoration:none;font-weight:normal;background:#C00;}

#fmli:hoverul{left:auto;}

#fmli.sfhoverul{left:auto;}

#content{clear:left;}

</STYLE>js代码为：

<SCRIPTtype=text/javascript>

functionmenuFix(){

varsfEls=document.getElementById("fm").getElementsByTagName("li");

for(vari=0;i<sfEls.length;i++){

sfEls[i].onmouseover=function(){

this.className+=(this.className.length>0?"":"")+"sfhover";

}

sfEls[i].onMouseDown=function(){

this.className+=(this.className.length>0?"":"")+"sfhover";

}

sfEls[i].onMouseUp=function(){

this.className+=(this.className.length>0?"":"")+"sfhover";

}

sfEls[i].onmouseout=function(){

this.className=this.className.replace(newRegExp("(?|^)sfhover\\b"),

"");

}

window.onload=menuFix;

</SCRIPT>最后的效果图为：

以上就是用html做鼠标悬浮菜单上的选项能出现下拉菜单的解决方法。

在CSS中定义下拉菜单的代码

参考一下这个

<!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""">

<head>

<<meta name="description" content="下拉菜单,CSS,布局"/>

margin:0;

padding:0;

border:0;

}

html{

background:#bfc4c7;/*背景颜色*/

}

body{

font:12px/150%'宋体';

margin:0 auto;

width:770px;

text-align:center;

}

#menu,#nav,#footer{

clear:both;

}

#nav{

padding-left:20px;

text-align:left;

background:#a60;

}

#footer{

background:#a30;

}

#logo,#banner,#mail,#left,#middle,#right{

float:left;

width:180px;

background:#f00;

}

#logo,#banner,#mail{

height:60px;

}

#banner{

width:468px;

background:#f60;

}

#mail{

width:122px;

background:#f90;

}

#left,#right{

width:200px;

}

#left{

background:#093;

}

#middle{

width:370px;

background:#063;

}

#right{

background:#033;

}

/*menu部分*/

#menu{

margin:0;

position:relative;

width:770px!important;

}

#menu ul{

list-style:none;

}

#menu li{

float:left;

position:relative;

}

#menu ul ul{

visibility:hidden;

position:absolute;

left:0px;

top:30px;

}

#menu table{

position:absolute;

left:0;

top:0;

}

#menu ul li:hover ul,#menu ul a:hover ul{

visibility:visible;

}

#menu a{

display:block;

text-align:center;

text-decoration:none;

width:77px;

height:30px;

color:#000;

line-height:30px;

background:#c9c9a7;

}

#menu a:hover{

color:#fff;

background:#b3ab79;

}

#menu ul ul li{

clear:both;

text-align:left;

}

#menu ul ul li a{

display:block;

width:77px;

height:30px;

background:#faeec7;

color:#000;

}

#menu ul ul li a:hover{

background:#dfc184;

color:#000;

}

</style>

</head>

<ul>

<li>

<table>

<tr>

<ul>

<li><a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" href="">XHTML</a></li>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

<li>

<table>

<tr>

<ul>

</ul><!--[if lte IE 6]>

</td>

</tr>

</table>

</a><![endif]-->

</li>

</ul>

</div>

</body>

</html>

css实现悬浮下拉菜单的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于css实现下拉框、css实现悬浮下拉菜单的信息别忘了在本站进行查找哦。

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