<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟学堂()</title>
<style>
p
{
border-style:solid;
border-right:thick double #ff0000;
}
</style>
</head>
<body>
<p>This is some text in a paragraph.</p>
</body>
</html>