富贵资源网 Design By www.hznty.com
先来个Demo:
https://www.jb51.net/jiaoben/111258.html
好吧,我承认,我有点标题党了,IE7的兼容并不是特别好,当鼠标离开某个导航再进入时,会留下上一次子菜单的残影(写的好像玄幻小说似的=。=)
不过纯属研究,O(∩_∩)O哈哈~
宽度自适应是指各级菜单都可以随内容的长度自行适应宽度,而当浏览器分辨率较低时一级导航也可以自动换行,而多级子菜单靠左显示还是得手动调整。
DOM结构比较简单,只是 ol.nav 与 li.item 的互相嵌套而已。
看代码吧(长是长了点,但其实你会发现导航的标签结构真的真的很简单,重要的是CSS部分):
复制代码代码如下:
<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>无限级纯CSS导航菜单</title>
<style type="text/css">
.nav{
margin: 0;
padding: 0;
float: left;
list-style: none;
background: #222;
}
.nav a{
color: #ddd;
display: block;
padding: 0 15px;
text-decoration: none;
}
.nav a:hover{
color: #2FAADD;
}
.nav .item{
margin: 0;
padding: 0;
float: left;
height: 35px;
line-height: 35px;
white-space: nowrap;
}
.nav .item:hover>a{
color: #2FAADD;
}
.nav .item:hover>.nav{
display: block;
}
.nav .nav{
top: 100%;
left: 0;
display: none;
background: #444;
position: absolute;
border: 1px solid #888;
}
.nav .nav .item{
clear: both;
min-width: 100%;
}
.nav .nav .nav{
top: -1px;
left: 100%;
}
.nav .nav .nav .nav .nav .nav{
left: auto;
right: 100%;
}
</style>
</head>
<body>
<ul class="nav">
<li class="item"><a href="#">一级导航 1</a>
<ul class="nav">
<li class="item"><a href="#">二级导航 1</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">无子导航 3</a></li>
<li class="item"><a href="#">二级导航 4</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">无子导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">长长的一级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">二级导航 1</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">更长的二级导航 3</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">低调的三级导航 5</a>
<ul class="nav">
<li class="item"><a href="#">四级导航 1</a></li>
<li class="item"><a href="#">藏的很深的四级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">藏的更深的五级导航 0</a></li>
<li class="item"><a href="#">五级导航 1</a></li>
<li class="item"><a href="#">五级导航 2</a></li>
<li class="item"><a href="#">五级导航 3</a></li>
<li class="item"><a href="#">五级导航 4</a></li>
<li class="item"><a href="#">下面该往左了吧</a>
<ul class="nav">
<li class="item"><a href="#">我在左边</a></li>
<li class="item"><a href="#">我真的在左边</a></li>
<li class="item"><a href="#">我就要赖在左边</a></li>
<li class="item"><a href="#">杨丞琳的左边好听</a></li>
<li class="item"><a href="#">呜呜,今年双十一又要过节</a></li>
<li class="item"><a href="#">妹纸妹纸在哪里?</a></li>
</ul>
</li>
</ul>
</li>
<li class="item"><a href="#">四级导航 3</a></li>
<li class="item"><a href="#">四级导航 4</a></li>
<li class="item"><a href="#">四级导航 5</a></li>
</ul>
</li>
</ul>
</li>
<li class="item"><a href="#">二级导航 4</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 5</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
</ul>
</li>
<li class="item"><a href="#">无子导航 3</a></li>
<li class="item"><a href="#">一级导航 4</a>
<ul class="nav">
<li class="item"><a href="#">二级导航 1</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 3</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 4</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 5</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
</ul>
</li>
<li class="item"><a href="#">一级导航 5</a>
<ul class="nav">
<li class="item"><a href="#">无子导航 1</a></li>
<li class="item"><a href="#">无子导航 2</a></li>
<li class="item"><a href="#">无子导航 3</a></li>
<li class="item"><a href="#">无子导航 4</a></li>
<li class="item"><a href="#">无子导航 5</a></li>
</ul>
</li>
</ul>
</body>
</html>
不过如果要探讨实用性的话,还是需要用JavaScript来兼容IE6下li不支持hover伪类的BUG,改动也很简单,也来个Demo:
https://www.jb51.net/jiaoben/111260.html
https://www.jb51.net/jiaoben/111258.html
好吧,我承认,我有点标题党了,IE7的兼容并不是特别好,当鼠标离开某个导航再进入时,会留下上一次子菜单的残影(写的好像玄幻小说似的=。=)
不过纯属研究,O(∩_∩)O哈哈~
宽度自适应是指各级菜单都可以随内容的长度自行适应宽度,而当浏览器分辨率较低时一级导航也可以自动换行,而多级子菜单靠左显示还是得手动调整。
DOM结构比较简单,只是 ol.nav 与 li.item 的互相嵌套而已。
看代码吧(长是长了点,但其实你会发现导航的标签结构真的真的很简单,重要的是CSS部分):
复制代码代码如下:
<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>无限级纯CSS导航菜单</title>
<style type="text/css">
.nav{
margin: 0;
padding: 0;
float: left;
list-style: none;
background: #222;
}
.nav a{
color: #ddd;
display: block;
padding: 0 15px;
text-decoration: none;
}
.nav a:hover{
color: #2FAADD;
}
.nav .item{
margin: 0;
padding: 0;
float: left;
height: 35px;
line-height: 35px;
white-space: nowrap;
}
.nav .item:hover>a{
color: #2FAADD;
}
.nav .item:hover>.nav{
display: block;
}
.nav .nav{
top: 100%;
left: 0;
display: none;
background: #444;
position: absolute;
border: 1px solid #888;
}
.nav .nav .item{
clear: both;
min-width: 100%;
}
.nav .nav .nav{
top: -1px;
left: 100%;
}
.nav .nav .nav .nav .nav .nav{
left: auto;
right: 100%;
}
</style>
</head>
<body>
<ul class="nav">
<li class="item"><a href="#">一级导航 1</a>
<ul class="nav">
<li class="item"><a href="#">二级导航 1</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">无子导航 3</a></li>
<li class="item"><a href="#">二级导航 4</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">无子导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">长长的一级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">二级导航 1</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">更长的二级导航 3</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">低调的三级导航 5</a>
<ul class="nav">
<li class="item"><a href="#">四级导航 1</a></li>
<li class="item"><a href="#">藏的很深的四级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">藏的更深的五级导航 0</a></li>
<li class="item"><a href="#">五级导航 1</a></li>
<li class="item"><a href="#">五级导航 2</a></li>
<li class="item"><a href="#">五级导航 3</a></li>
<li class="item"><a href="#">五级导航 4</a></li>
<li class="item"><a href="#">下面该往左了吧</a>
<ul class="nav">
<li class="item"><a href="#">我在左边</a></li>
<li class="item"><a href="#">我真的在左边</a></li>
<li class="item"><a href="#">我就要赖在左边</a></li>
<li class="item"><a href="#">杨丞琳的左边好听</a></li>
<li class="item"><a href="#">呜呜,今年双十一又要过节</a></li>
<li class="item"><a href="#">妹纸妹纸在哪里?</a></li>
</ul>
</li>
</ul>
</li>
<li class="item"><a href="#">四级导航 3</a></li>
<li class="item"><a href="#">四级导航 4</a></li>
<li class="item"><a href="#">四级导航 5</a></li>
</ul>
</li>
</ul>
</li>
<li class="item"><a href="#">二级导航 4</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 5</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
</ul>
</li>
<li class="item"><a href="#">无子导航 3</a></li>
<li class="item"><a href="#">一级导航 4</a>
<ul class="nav">
<li class="item"><a href="#">二级导航 1</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 2</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 3</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 4</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
<li class="item"><a href="#">二级导航 5</a>
<ul class="nav">
<li class="item"><a href="#">三级导航 1</a></li>
<li class="item"><a href="#">三级导航 2</a></li>
<li class="item"><a href="#">三级导航 3</a></li>
<li class="item"><a href="#">三级导航 4</a></li>
<li class="item"><a href="#">三级导航 5</a></li>
</ul>
</li>
</ul>
</li>
<li class="item"><a href="#">一级导航 5</a>
<ul class="nav">
<li class="item"><a href="#">无子导航 1</a></li>
<li class="item"><a href="#">无子导航 2</a></li>
<li class="item"><a href="#">无子导航 3</a></li>
<li class="item"><a href="#">无子导航 4</a></li>
<li class="item"><a href="#">无子导航 5</a></li>
</ul>
</li>
</ul>
</body>
</html>
不过如果要探讨实用性的话,还是需要用JavaScript来兼容IE6下li不支持hover伪类的BUG,改动也很简单,也来个Demo:
https://www.jb51.net/jiaoben/111260.html
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免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
富贵资源网 Design By www.hznty.com
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