Web Front-endHTML TutorialHow to use HTML to create a secondary menu bar that the mouse moves over (example source code)How to use HTML to create a secondary menu bar that the mouse moves over (example source code)
This article mainly introduces how to use HTML to create a secondary menu bar (example source code) that the mouse moves over. It is very helpful for building a website. Friends who need it can refer to it and share the example source code with everyone. As follows:
First, the renderings:
1. The mouse is not on it
2. The mouse is placed on the first-level menu. Expand the secondary menu
3. Place the mouse on the secondary menu
The example source code is as follows:
<html>
<head>
<title>二级菜单测试</title>
<meta charset="utf-8">
<style type="text/css">
/*为了使菜单居中*/
body {
padding-top:100px;
text-align:center;
}
/* -------------菜单css代码----------begin---------- */
.menup {
border: 2px solid #aac;
overflow: hidden;
display:inline-block;
}
/* 去掉a标签的下划线 */
.menup a {
text-decoration: none;
}
/* 设置ul和li的样式 */
.menup ul , .menup li {
list-style: none;
margin: 0;
padding: 0;
float: left;
}
/* 设置二级菜单绝对定位，并隐藏 */
.menup > ul > li > ul {
position: absolute;
display: none;
}
/* 设置二级菜单的li的样式 */
.menup > ul > li > ul > li {
float: none;
}
/* 鼠标放在一级菜单上，显示二级菜单 */
.menup > ul > li:hover ul {
display: block;
}
/* 一级菜单 */
.menup > ul > li > a {
width: 120px;
line-height: 40px;
color: black;
background-color: #cfe;
text-align: center;
border-left: 1px solid #bbf;
display: block;
}
/* 在一级菜单中，第一个不设置左边框 */
.menup > ul > li:first-child > a {
border-left: none;
}
/* 在一级菜单中，鼠标放上去的样式 */
.menup > ul > li > a:hover {
color: #f0f;
background-color: #bcf;
}
/* 二级菜单 */
.menup > ul > li > ul > li > a {
width: 120px;
line-height: 36px;
color: #456;
background-color: #eff;
text-align: center;
border: 1px solid #ccc;
border-top: none;
display: block;
}
/* 在二级菜单中，第一个设置顶边框 */
.menup > ul > li > ul > li:first-child > a {
border-top: 1px solid #ccc;
}
/* 在二级菜单中，鼠标放上去的样式 */
.menup > ul > li > ul > li > a:hover {
color: #a4f;
background-color: #cdf;
}
/* -------------菜单css代码----------end---------- */
</style>
</head>
<body>
<!-- -------菜单html代码---------begin------- -->
<p class="menup">
<ul>
<li>
<a href="#">菜单一</a>
<ul>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
</ul>
</li>
<li>
<a href="#">菜单二</a>
<ul>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
</ul>
</li>
<li>
<a href="#">菜单三</a>
<ul>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
</ul>
</li>
<li>
<a href="#">菜单四</a>
</li>
<li>
<a href="#">菜单五</a>
<ul>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
<li><a href="#">二级菜单</a></li>
</ul>
</li>
</ul>
</p>
<!-- -------菜单html代码---------end------- -->
</body>
</html>
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