CSS實現懸停式下拉框
阿新 • • 發佈:2019-01-02
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
*{
margin:0;
padding:0;
}
.dropdown{
display: inline-block;
}
.btn{
position : relative;
display: inline-block;
padding:5px 8px;
background-color: #fff;
border-radius: 4px;
border:1px solid #ccc;
}
.btn:hover{
background-color: #ddd;
}
.menu{
display: none;
position : absolute;
list-style: none;
border: 1px solid #eee;
min-width: 100px;
}
.menu li{
padding:5px 10px;
}
.menu li:hover{
background-color: #eee;
}
.dropdown:hover .menu{
display: block ;
}
.dropdown:hover .btn{
background-color: #ddd;
}
</style>
</head>
<body>
<div class="dropdown">
<div class="btn">Hover me</div>
<ul class="menu">
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
</div>
</body>
</html>
效果圖:
有一個地方不是很清楚,為什麼離開按鈕下拉框還會存在?是因為觸發了.dropdown:hover
嗎?