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html+css菜单代码
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="UTF-8"> | |
<title>Document</title> | |
<style type="text/css" media="screen"> | |
*{ | |
margin:0px; | |
padding:0px; | |
} | |
body{ | |
font-family: verdana; | |
background-color: #f9c;; | |
padding:50px; | |
} | |
h1{ | |
text-align: center; | |
/* border-bottom:2px solid #009; */ | |
margin:0px auto; | |
margin-bottom:50px; | |
width:550px; | |
/* border-style:solid dotted dashed doube; */ | |
border:5px solid red; | |
outline:10px dotted blue; | |
border-radius:30px; | |
margin-bottom:300px; | |
} | |
h1:hover{ | |
outline:solid 30px; | |
outline-color:rgba(255,255, 0, 1); | |
} | |
/* rules for navigation menu */ | |
/* ================================== */ | |
/* ul li:nth-child(2n){ | |
list-style:square; | |
padding-left:50px; | |
color:red; | |
} */ | |
/* 二级三级菜单平常是隐藏状态 */ | |
ul#navmenu, ul.sub1, ul.sub2{ | |
list-style-type:none; | |
/* border:1px solid blue; */ | |
/* outline:1px solid red; */ | |
font-size:9pt; | |
} | |
/* 一级菜单有宽度块,浮动显示,变成水平菜单,这里relative和float结合才能正常 */ | |
ul#navmenu li{ | |
/* outline:1px solid red; */ | |
/* border:1px solid blue; */ | |
display:block; | |
width:200px; | |
text-align:center; | |
position:relative; | |
/* left:20px; */ | |
float:left; | |
margin-right:4px; | |
/* margin:30px; */ | |
/* padding:20px; */ | |
} | |
/* 菜单链接文字,显示为block也就是在整个区域都是热点,不单单a文字区域。另外圆角只能作用于a,不能作用于li */ | |
ul#navmenu li a{ | |
text-decoration:none; | |
display:block; | |
width:200px; | |
height:25px; | |
line-height:25px; | |
background-color:white; | |
/* border:1px solid #CCC; */ | |
border-radius:6px; | |
} | |
/* 子菜单平时隐藏状态,位置是absolute而不是relative,往下平移25px,不能多,否则hover状态不连续 */ | |
ul#navmenu ul.sub1{ | |
display:none; | |
position:absolute; | |
top:25px; | |
left:0px; | |
} | |
ul#navmenu .sub1 li{ | |
/* border:1px solid blue; */ | |
/* margin-top:4px; */ | |
} | |
/* 子菜单上下间距 */ | |
ul#navmenu .sub1 a{ | |
margin-top:4px; | |
} | |
/* 这里是所有hover状态下的li里面的a元素,匹配当前hover的li和hover的a的父级,祖父级li里面的a */ | |
ul#navmenu li:hover>a{ | |
background-color:#AF8; | |
} | |
/* 这里是当前hover的li且hover的a */ | |
ul#navmenu li:hover > a:hover{ | |
background-color:#ff0; | |
} | |
/* 通sub1,不过是水平右移 */ | |
ul#navmenu ul.sub2{ | |
display:none; | |
position:absolute; | |
top:0px; | |
left:200px; | |
} | |
/* 这里是三级菜单和二级菜单的视觉间隙,hover连续。因为li元素之间无间隙 */ | |
ul#navmenu .sub2 a{ | |
margin-left:25px; | |
} | |
/* 子菜单hover时显示出来。block */ | |
ul#navmenu li:hover .sub1{ | |
display:block; | |
} | |
/* 三级菜单hover时显示出来 */ | |
ul#navmenu .sub1 li:hover .sub2{ | |
display:block; | |
} | |
/* 把向下箭头定位到正确位置。这里absolute是在relative的前提下,不再是相对于body而是上下文了 */ | |
.darrow{ | |
font-size: 11pt; | |
position:absolute; | |
top:5px; | |
right:4px; | |
} | |
.rarrow{ | |
font-size: 20pt; | |
position:absolute; | |
top:0px; | |
right:4px; | |
} | |
.article p:first-child{ | |
color:red; | |
clear:left; | |
margin-top:20px; | |
} | |
</style> | |
</head> | |
<body> | |
<h1>navigation menu</h1> | |
<ul id="navmenu"> | |
<li><a href="">hyperLink01</a></li> | |
<li><a href="">hyperLink02</a><span class="darrow">▼</span> | |
<ul class="sub1"> | |
<li><a href="">sublink 2.1</a></li> | |
<li><a href="">sublink 2.2</a></li> | |
<li><a href="">sublink 2.3</a></li> | |
</ul> | |
</li> | |
<li><a href="">hyperLink03</a></li> | |
<li><a href="">hyperLink04</a><span class="darrow">▼</span> | |
<ul class="sub1"> | |
<li><a href="">sublink 4.1</a></li> | |
<li><a href="">sublink 4.2</a></li> | |
<li><a href="">sublink 4.3</a><span class="rarrow">▶</span> | |
<ul class="sub2"> | |
<li><a href="">sublink 4.3.1</a></li> | |
<li><a href="">sublink 4.3.2</a></li> | |
<li><a href="">sublink 4.3.3</a></li> | |
</ul> | |
</li> | |
</ul> | |
</li> | |
<li><a href="">hyperLink05</a></li> | |
</ul> | |
<br> | |
<br> | |
<br> | |
<br> | |
<div class="article"> | |
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Et, repellendus?</p> | |
<p>Commodi explicabo eligendi accusamus atque, corrupti necessitatibus tempore aliquid temporibus!</p> | |
<div> | |
<p>Lorem ipsum dolor sit amet.</p> | |
<p>Fuga molestias, ipsa eligendi asperiores.</p> | |
</div> | |
<p>Ipsum perferendis voluptate ipsa mollitia esse quia delectus, saepe velit.</p> | |
</div> | |
</body> | |
</html> |
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