<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 缩放（Resizable） - 保持纵横比</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">
<style>
#resizable { width: 160px; height: 90px; padding: 0.5em; }
#resizable h3 { text-align: center; margin: 0; }
</style>
<script>
$(function() {
$( "#resizable" ).resizable({
aspectRatio: 16 / 9
});
});
</script>
</head>
<body>
<div id="resizable" class="ui-widget-content">
<h3 class="ui-widget-header">保持纵横比</h3>
</div>
</body>
</html>