trycss3_border-top-left-radius 在线代码实例

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>W3Cschool教程(w3cschool.cn)</title> 
<style> 
div
{
    border:2px solid;
    padding:10px;
    background:#dddddd;
    border-top-left-radius:2em;
    -webkit-border-top-left-radius:2em; /* Safari */
}
</style>
</head>
<body>
<div>The border-top-left-radius property allows you to add a rounded border to the top-left corner.</div>
</body>
</html>
 
 
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运行结果
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