<html>
<head>
<style>
p.normal {
border: 2px solid red;
}
p.round1 {
border: 2px solid red;
border-radius: 5px;
}
p.round2 {
border: 2px solid red;
border-radius: 8px;
}
p.round3 {
border: 2px solid red;
border-radius: 12px;
}
</style>
</head>
<body>
<h2>border-radius 属性</h2>
<p>此属性用于为元素添加圆角边框:</p>
<p class="normal">正常边框</p>
<p class="round1">圆形边框</p>
<p class="round 2">圆角边框</p>
<p class="round 3">圆形边框</p>
</body>
</html>