实例代码“Ctrl+/”提示“F11/ESC”全屏 返回 格式化 恢复 运行
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<!DOCTYPE HTML>
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<html>
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    <head>
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        <meta charset="utf-8">
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        <title>实例
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        </title>
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    </head>
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    <body>
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        <style type="text/css">.demo_box{
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            border:1px solid #3DA5DC;
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            background:#a4dcf9;
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            height:100px;
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            width:200px;
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            text-align:center;
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            color:#fff;
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            }
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            .transition_property_1{
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                -webkit-transition:0.5s ease;
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                -moz-transition:0.5s ease;
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                -webkit-transition-property:all;
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                -moz-transition-property:all;
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                position:absolute;