案例：jQuery UI案例     状态：可编辑再运行    进入横版
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        collision: $( "#collision_horizontal" ).val() + " " + $( "#collision_vertical" ).val()
 
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<!doctype html>
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<html lang="en">
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<head>
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  <meta charset="utf-8">
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  <title>jQuery UI 定位（Position） - 默认功能</title>
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  <link rel="stylesheet" href="/css/jqu1.10.4/jquery-ui.min.css">
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  <script src="/js/jqu/jquery.min1.10.2.js"></script>
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  <script src="/js/jqu/jquery-ui.min1.10.4.js"></script>
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  <link rel="stylesheet" href="jqueryui/style.css">
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  <style>
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  #parent {
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    width: 60%;
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    height: 40px;
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    margin: 10px auto;
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    padding: 5px;
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    border: 1px solid #777;
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    background-color: #fbca93;
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    text-align: center;
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  }
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  .positionable {
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    position: absolute;
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    display: block;
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    right: 0;
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    bottom: 0;

 运行结果　
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