基本下拉菜单
当鼠标移动到指定元素上时，会出现下拉菜单。
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
padding: 12px 16px;
}
.dropdown:hover .dropdown-content {
display: block;
}
</style>
</head>
<body>
<div class="dropdown">
<span>鼠标移动到我这！</span>
<div class="dropdown-content">
<p>nab全明星</p>
<p>科比 哈登 保罗 </p>
</div>
</div>
下拉菜单
/* 下拉按钮样式 */
.dropbtn {
background-color: #4CAF50;
color: white;
padding: 16px;
font-size: 16px;
border: none;
cursor: pointer;
}
/* 容器 <div> - 需要定位下拉内容 */
.dropdown {
position: relative;
display: inline-block;
}
/* 下拉内容 (默认隐藏) */
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
/* 下拉菜单的链接 */
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
/* 鼠标移上去后修改下拉菜单链接颜色 */
.dropdown-content a:hover {background-color: #f1f1f1}
/* 在鼠标移上去后显示下拉菜单 */
.dropdown:hover .dropdown-content {
display: block;
}
/* 当下拉内容显示后修改下拉按钮的背景颜色 */
.dropdown:hover .dropbtn {
background-color: #3e8e41;
}
</style>
</head>
<body>
<div class="dropdown">
<button class="dropbtn">下拉菜单</button>
<div class="dropdown-content">
<a href="http://www.runoob.com">商场</a>
<a href="http://www.runoob.com">男装</a>
<a href="http://www.runoob.com">女装</a>
</div>
</div>
设置左右下拉菜单
图片下拉
.dropdown {
position: relative;
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
.dropdown:hover .dropdown-content {
display: block;
}
.desc {
padding: 15px;
text-align: center;
}
</style>
</head>
<body>
<h2>下拉图片</h2>
<p>移动鼠标到图片上显示下拉内容。</p>
<div class="dropdown">
<img src="http://www.runoob.com/wp-content/uploads/2015/09/banner.jpg" alt="Trolltunga Norway" width="100" height="50">
<div class="dropdown-content">
<img src="http://www.runoob.com/wp-content/uploads/2015/09/banner.jpg" alt="Trolltunga Norway" width="400" height="200">
<div class="desc">学的不仅是技术，更是梦想！</div>
</div>
</div>
导航栏下拉的样式
ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: #333;
}
li {
float: left;
}
li a, .dropbtn {
display: inline-block;
color: white;
text-align: center;
padding: 14px 16px;
text-decoration: none;
}
li a:hover, .dropdown:hover .dropbtn {
background-color: #111;
}
.dropdown {
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown-content a:hover {background-color: #f1f1f1}
.dropdown:hover .dropdown-content {
display: block;
}
</style>
</head>
<body>
<ul>
<li><a class="active" href="#home">主页</a></li>
<li><a href="#news">新闻</a></li>
<div class="dropdown">
<a href="#" class="dropbtn">下拉菜单</a>
<div class="dropdown-content">
<a href="#">链接 1</a>
<a href="#">链接 2</a>
<a href="#">链接 3</a>
</div>
</div>
</ul>
---------------------
【转载，仅作分享，侵删】
作者：前端小99
原文：https://blog.csdn.net/qq_41328247/article/details/79986866
版权声明：本文为博主原创文章，转载请附上博文链接！
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