trycss_cen_1 在线代码实例

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<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>编程狮(w3cschool.cn)</title>
<style>
.wrap{
    line-height: 200px;/*垂直居中关键*/
    text-align:center;
    height: 200px;
    font-size: 36px;
    background-color: #ccc;
}
</style>
<body>
    <div class="wrap">
        这是一个段落
    </div>
</body>
</html>
 
 
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运行结果
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