<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 滑块（Slider） - 对齐增量</title>
<link rel="stylesheet" href="https://libs.baidu.com/jqueryui/1.10.4/css/jquery-ui.min.css">
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script src="https://libs.baidu.com/jqueryui/1.10.4/jquery-ui.min.js"></script>
<link rel="stylesheet" href="/demo/jqueryui/style.css">
<script>
$(function() {
$( "#slider" ).slider({
value:100,
min: 0,
max: 500,
step: 50,
slide: function( event, ui ) {
$( "#amount" ).val( "$" + ui.value );
}
});
$( "#amount" ).val( "$" + $( "#slider" ).slider( "value" ) );
});
</script>
</head>
<body>
<p>
<label for="amount">捐款金额（$50 增量）：</label>
<input type="text" id="amount" style="border:0; color:#f6931f; font-weight:bold;">
</p>
<div id="slider"></div>
</body>
</html>