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Foundation 下拉菜单允许用户从预定义的下拉列表中选取一个值：
<!DOCTYPE html>
<html>
<head>
<title>Foundation 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://static.php.cn/assets/foundation-5.5.3/foundation.min.css">
<script src="http://static.php.cn/assets/jquery/2.0.3/jquery.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/foundation.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/vendor/modernizr.js"></script>
</head>
<body>
<div style="padding:20px;">
<h2>下拉菜单按钮</h2>
<a href="#" data-dropdown="id01" class="button dropdown">Dropdown Button</a>
<ul id="id01" data-dropdown-content class="f-dropdown">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
</div>
<!-- 初始化 Foundation JS -->
<script>
$(document).ready(function() {
$(document).foundation();
})
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
.dropdown 类为按钮添加一个向下的箭头符号"图标。
使用按钮或链接的 data-dropdown="id" 属性来打开下拉菜单。
id 值需要与下拉菜单的内容 (id01) 匹配。
在 <div>, <nav>, <ul> 中添加 .f-dropdown 类和 data-dropdown-content 属性来创建下拉菜单的内容。
最后初始化 Foundation JS。
注意: 在小屏幕上，所有的下拉菜单的宽度是100%。
使用 .tiny, .small, .medium, .large 或 .mega 来修改下拉菜单的宽度。
注意: 在小屏幕上，所有的下拉菜单的宽度是100%。
<!DOCTYPE html>
<html>
<head>
<title>Foundation 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://static.php.cn/assets/foundation-5.5.3/foundation.min.css">
<script src="http://static.php.cn/assets/jquery/2.0.3/jquery.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/foundation.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/vendor/modernizr.js"></script>
</head>
<body style="padding:20px">
<!-- Tiny Dropdown: max-width is 200px -->
<a href="#" data-dropdown="id01" class="button dropdown">Tiny</a>
<ul id="id01" data-dropdown-content class="f-dropdown tiny">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<br>
<!-- Small Dropdown: max-width is 300px -->
<a href="#" data-dropdown="id02" class="button dropdown">Small</a>
<ul id="id02" data-dropdown-content class="f-dropdown small">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<br>
<!-- Medium Dropdown: max-width is 500px -->
<a href="#" data-dropdown="id03" class="button dropdown">Medium</a>
<ul id="id03" data-dropdown-content class="f-dropdown medium">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<br>
<!-- Large Dropdown: max-width is 800px -->
<a href="#" data-dropdown="id04" class="button dropdown">Large</a>
<ul id="id04" data-dropdown-content class="f-dropdown large">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<br>
<!-- Mega Dropdown: 100% width -->
<a href="#" data-dropdown="id05" class="button dropdown">Mega</a>
<ul id="id05" data-dropdown-content class="f-dropdown mega">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<!-- Initialize Foundation JS -->
<script>
$(document).ready(function() {
$(document).foundation();
})
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
可以使用 .content 类为下拉菜单添加内边距：
<!DOCTYPE html>
<html>
<head>
<title>Foundation 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://static.php.cn/assets/foundation-5.5.3/foundation.min.css">
<script src="http://static.php.cn/assets/jquery/2.0.3/jquery.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/foundation.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/vendor/modernizr.js"></script>
</head>
<body style="padding:20px">
<h2>下拉菜单内容项</h2>
<a href="#" data-dropdown="id01" class="button dropdown">没有内边距</a>
<ul id="id01" data-dropdown-content class="f-dropdown">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<a href="#" data-dropdown="id02" class="button dropdown">有内边距</a>
<ul id="id02" data-dropdown-content class="f-dropdown content">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<!-- Initialize Foundation JS -->
<script>
$(document).ready(function() {
$(document).foundation();
})
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
<div> 下拉菜单中添加多媒体元素：
<!DOCTYPE html>
<html>
<head>
<title>Foundation 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://static.php.cn/assets/foundation-5.5.3/foundation.min.css">
<script src="http://static.php.cn/assets/jquery/2.0.3/jquery.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/foundation.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/vendor/modernizr.js"></script>
</head>
<body style="padding:20px;">
<h2>下拉菜单内容</h2>
<a href="#" data-dropdown="id01" class="button dropdown">下拉按钮</a>
<div id="id01" data-dropdown-content class="f-dropdown medium content">
<h4>Paris Title</h4>
<p>Some text.. some text..</p>
<img src="paris.jpg" alt="Paris" width="400" height="300">
<p>Paris, je t'aime.</p>
</div>
<!-- Initialize Foundation JS -->
<script>
$(document).ready(function() {
$(document).foundation();
})
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
默认情况下下拉菜单在底部，可以通过添加 data-options="align:left|right|top" 来修改其方向：
<!DOCTYPE html>
<html>
<head>
<title>Foundation 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://static.php.cn/assets/foundation-5.5.3/foundation.min.css">
<script src="http://static.php.cn/assets/jquery/2.0.3/jquery.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/foundation.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/vendor/modernizr.js"></script>
</head>
<body style="padding:20px;"><br><br><!-- Add <br> elements to enable top dropdown -->
<h2>下拉菜单方向</h2>
<a href="#" data-dropdown="id01" data-options="align:right" class="button dropdown">右边</a>
<ul id="id01" data-dropdown-content class="f-dropdown">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<a href="#" data-dropdown="id02" data-options="align:top" class="button dropdown">顶部</a>
<ul id="id02" data-dropdown-content class="f-dropdown">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<a href="#" data-dropdown="id03" data-options="align:bottom" class="button dropdown">底部</a>
<ul id="id03" data-dropdown-content class="f-dropdown">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<a href="#" data-dropdown="id04" data-options="align:left" class="button dropdown">左边</a>
<ul id="id04" data-dropdown-content class="f-dropdown">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<!-- Initialize Foundation JS -->
<script>
$(document).ready(function() {
$(document).foundation();
})
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
默认情况下，下拉菜单在点击按钮后显示。如果你需要在鼠标移动上去后显示，可以在按钮上使用 data-options="is_hover:true" 属性:
<!DOCTYPE html>
<html>
<head>
<title>Foundation 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://static.php.cn/assets/foundation-5.5.3/foundation.min.css">
<script src="http://static.php.cn/assets/jquery/2.0.3/jquery.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/foundation.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/vendor/modernizr.js"></script>
</head>
<body style="padding:20px">
<h2>下拉菜单触发条件</h2>
<a href="#" data-dropdown="id01" data-options="is_hover:true" class="button dropdown">鼠标移动到我这</a>
<ul id="id01" data-dropdown-content class="f-dropdown">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
<!-- Initialize Foundation JS -->
<script>
$(document).ready(function() {
$(document).foundation();
})
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
我们可以在按钮上添加 .split 类来设置一个分割效果的按钮，分割后会在
<span> 元素上生成一个方向向下的图标按钮:
<!DOCTYPE html>
<html>
<head>
<title>Foundation 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://static.php.cn/assets/foundation-5.5.3/foundation.min.css">
<script src="http://static.php.cn/assets/jquery/2.0.3/jquery.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/foundation.min.js"></script>
<script src="http://static.php.cn/assets/foundation-5.5.3/js/vendor/modernizr.js"></script>
</head>
<body>
<div style="padding:20px;">
<h2>分割按钮</h2>
<button class="button split">Split Button <span data-dropdown="id01"></span></button>
<ul id="id01" data-dropdown-content class="f-dropdown">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
</ul>
</div>
<!-- Initialize Foundation JS -->
<script>
$(document).ready(function() {
$(document).foundation();
})
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
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