CSS Drop-down Menu
Use CSS to create an effect that displays a drop-down menu when the mouse is moved up.
<html>
<meta charset="utf-8">
<head>
<style>
nav {
margin: 100px auto;
text-align: center;
}
nav ul ul {
display: none;
}
nav ul li:hover > ul {
display: block;
}
nav ul {
background: #efefef;
background: linear-gradient(top, #efefef 0%, #bbbbbb 100%);
background: -moz-linear-gradient(top, #efefef 0%, #bbbbbb 100%);
background: -webkit-linear-gradient(top, #efefef 0%,#bbbbbb 100%);
box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
padding: 0 20px;
border-radius: 10px;
list-style: none;
position: relative;
display: inline-table;
}
nav ul:after {
content: ""; clear: both; display: block;
}
nav ul li {
float: left;
}
nav ul li:hover {
background: #4b545f;
background: linear-gradient(top, #4f5964 0%, #5f6975 40%);
background: -moz-linear-gradient(top, #4f5964 0%, #5f6975 40%);
background: -webkit-linear-gradient(top, #4f5964 0%,#5f6975 40%);
}
nav ul li:hover a {
color: #fff;
}
nav ul li a {
display: block; padding: 25px 40px;
color: #757575; text-decoration: none;
}
nav ul ul {
background: #5f6975; border-radius: 0px; padding: 0;
position: absolute; top: 100%;
}
nav ul ul li {
float: none;
border-top: 1px solid #6b727c;
border-bottom: 1px solid #575f6a; position: relative;
}
nav ul ul li a {
padding: 15px 40px;
color: #fff;
}
nav ul ul li a:hover {
background: #4b545f;
}
nav ul ul ul {
position: absolute; left: 100%; top:0;
}
</style>
</head>
<nav>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Tutorials</a>
<ul>
<li><a href="#">Photoshop</a></li>
<li><a href="#">Illustrator</a></li>
<li><a href="#">Web Design</a>
<ul>
<li><a href="#">HTML</a></li>
<li><a href="#">CSS</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">Articles</a>
<ul>
<li><a href="#">Web Design</a></li>
<li><a href="#">User Experience</a></li>
</ul>
</li>
<li><a href="#">Inspiration</a></li>
</ul>
</nav>
</html>Example 2:
<html>
<head>
<meta charset="utf-8">
<style>
ul,ol,li
{list-style:none;padding:0px;margin:0px;}
#menu *
{line-height:30px;z-index:10;}
#menu a
{
text-decoration:none;
display:block;
}
#menu ul
{
text-align:left;
background:#333;
}
#menu .arrow /* 菜单项的右侧小箭头 */
{
float:right;
padding-right:5px;
}
#menu li:hover>ul
{display:block;}
#menu>ul{height:30px;} /* 即使没有菜单项也能保持顶级菜单栏的高度。 */
/* 一级菜单 */
#menu>ul>li
{
text-align:center;
display:inline-block;
width:80px;
}
#menu>ul>li>a
{color:#fff;}
#menu>ul>li:hover
{background:#666;}
/* 下拉的菜单栏 */
#menu>ul>li ul
{
display:none;
width:150px;
position:absolute;
background:#c1cd94;
box-shadow:2px 2px 2px #000;
-webkit-box-shadow:2px 2px 2px #000;
-moz-box-shadow:2px 2px 2px #123;
}
/* 下拉菜单的菜单项 */
#menu>ul>li>ul li
{padding-left:5px; position:relative;}
#menu>ul>li>ul li>a
{color:#000;}
#menu>ul>li>ul li:hover
{background:#d3dbb3;}
/* 三级及以下的菜单项的定位 */
#menu>ul>li>ul>li ul
{left:150px; top:0px;}
</style>
</head>
<body>
<div id="menu">
<ul>
<li><a href="">菜单一</a>
<ul>
<li><a href="">子菜单1</a></li>
<li><a href="">子菜单2</a>
<ul><li><a href="">子菜单7</a></li></ul>
</li>
<li><a href="">子菜单3</a></li>
</ul>
</li>
<li><a href="">菜单二</a>
<ul>
<li><a href="">子菜单4</a></li>
<li><a href="">子菜单5</a></li>
<li><a href="">子菜单6</a></li>
</ul>
</li>
</ul>
</div>
</body>
</html>
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