这是一个响应式设计的菜单。单击列表图标，当你显示屏大小可以完全水平放下所有菜单项时，菜单水平显示（如图1）。当你的显示屏不能水平放置所有菜单项时，菜单垂直显示（如图2）。 而且显示的时候是以动画的型式显示。效果相当的好。
下面贴出实现这功能的源代码，这是一个纯用css3实现的菜单
html代码：
<div class="container">
<!--[if lte IE 8]>
<style> .iconicmenu > label{
border-width: 7px;
background: #eee;
} .iconicmenu:hover ul{
left: 8px; /* show menu onmouseover in IE8 and below */
}</style>
<![endif]-->
<div class="iconicmenu">
<input type="checkbox" id="togglebox" />
<ul>
<li><a targe="_blank" href="http://www.w2bc.com/Shili/css3%E8%8F%9C%E5%8D%95" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Home</a></li>
<li><a targe="_blank" href="http://www.w2bc.com/Shili/css3%E8%8F%9C%E5%8D%95" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >DHTML</a></li>
<li><a targe="_blank" href="http://www.w2bc.com/Shili/css3%E8%8F%9C%E5%8D%95" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >CSS Library</a></li>
<li><a targe="_blank" href="http://www.w2bc.com/Shili/css3%E8%8F%9C%E5%8D%95" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >CSS Gallery</a></li>
<li><a targe="_blank" href="http://www.w2bc.com/Shili/css3%E8%8F%9C%E5%8D%95" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >JavaScript</a></li>
<li>
<label for="togglebox">
</label>
</li>
</ul>
<label class="toggler" for="togglebox">
Menu</label>
</div>
</div>
这里加入了兼容ie8的hack 。
css代码：
body
{
padding:; margin:;
}
.container
{
width:600px; margin:auto;
}
.iconicmenu {
position: relative;
height: 45px;
overflow: hidden;
}.iconicmenu, .iconicmenu * {
-moz-box-sizing: border-box;
box-sizing: border-box;
}.iconicmenu input[type="checkbox"] { /* checkbox used to toggle menu state */
position: absolute;
left:;
top:;
opacity:;
}.iconicmenu > label { /* Main label icon to toggle menu state */
z-index:;
display: block;
position: absolute;
width: 40px;
height: 40px;
float: left;
top:;
left:;
background: white;
text-indent: -1000000px;
border: 6px solid black; /* border color */
border-width: 6px 0;
cursor: pointer;
-moz-transition: all 0.3s ease-in;
-webkit-transition: all 0.3s ease-in;
transition: all 0.3s ease-in; /* transition for flipping label */
}.iconicmenu > label::after { /* inner stripes inside label */
content: "";
display: block;
position: absolute;
width: 100%;
height: 18%;
top: 19%;
left:;
border: 6px solid black; /* border color */
border-width: 6px 0;
-moz-transition: all 0.3s ease-in;
-webkit-transition: all 0.3s ease-in;
transition: all 0.3s ease-in; /* transition for flipping label */
}.iconicmenu ul { /* UL menu inside container */
margin:;
padding:;
position: absolute;
margin-left: 40px;
background: #eee;
left: -100%; /* hide menu intially */
height: 40px; /* height of menu */
font: bold 14px Verdana;
text-align: center;
list-style: none;
opacity:;
-moz-border-radius: 0 5px 5px 0;
-webkit-border-radius: 0 5px 5px 0;
border-radius: 0 5px 5px 0;
-moz-perspective: 10000px;
perspective: 10000px;
-moz-transition: all 0.5s ease-in;
-webkit-transition: all 0.5s ease-in;
transition: all 0.5s ease-in; /* transition for animating UL in and out */
}.iconicmenu li {
display: inline;
margin:;
padding:;
}.iconicmenu ul label { /* label button inside UL to close menu */
cursor: pointer;
position: relative;
height: 100%;
text-align: center;
}.iconicmenu ul label::after { /* label button x */
content: "x";
display: inline-block;
line-height: 14px;
color: white;
-moz-border-radius: 50px;
-webkit-border-radius: 50px;
border-radius: 50px;
width: 20px;
height: 20px;
background: black;
font-size: 18px;
margin: 5px;
margin-top: 10px;
-moz-transition: all 0.3s ease-in;
-webkit-transition: all 0.3s ease-in;
transition: all 0.3s ease-in;
}.iconicmenu input[type="checkbox"]:checked ~ label, .iconicmenu ul label:hover::after {
-moz-transform: rotatey(180deg);
-ms-transform: rotatey(180deg);
-webkit-transform: rotatey(180deg);
transform: rotatey(180deg); /* flip labels vertically onMouseover */
}.iconicmenu > label:hover, .iconicmenu > label:hover::after, .iconicmenu input[type="checkbox"]:checked ~ label, .iconicmenu input[type="checkbox"]:checked ~ label::after {
border-color: darkred; /* highlight color of main menu label onMouseover */
}.iconicmenu input[type="checkbox"]:checked ~ ul {
left: 8px; /* Animate menu into view */
opacity:;
-moz-box-shadow: 1px 1px 5px gray;
-webkit-box-shadow: 1px 1px 5px gray;
box-shadow: 1px 1px 5px gray;
}.iconicmenu li a {
display: block;
float: left;
text-align: center;
text-decoration: none;
color: black;
margin:;
padding: 10px;
padding-right: 15px;
height: 100%;
}.iconicmenu li a:hover {
background: black;
color: white;
}/* ----------------------------- CSS Media Queries ----------------------------- *//*
These rules control which portions of the menu gets shown when the screen size is below a certain width.
By default 2 stages are defined depending on browser screen width.
*/@media screen and (max-width: 580px) { /* Hide toggle icon when menu is already open (increases usable menu space by 40px) */
.iconicmenu input[type="checkbox"]:checked ~ label {
display: none;
}
.iconicmenu input[type="checkbox"]:checked ~ ul {
margin-left:;
}
}@media screen and (max-width: 560px) { /* Convert horizontal menu to vertical drop down instead (friendly across all screen sizes) */
.iconicmenu {
overflow: visible;
}
.iconicmenu ul {
height: auto;
}
.iconicmenu ul li {
min-width: 200px;;
display: block;
}
.iconicmenu ul li a {
float: none;;
text-align: left;
}
}
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