css border 边框单独设置各边

编辑代码

<!DOCTYPE html>
<html>
<head>
<style>
p {
	border-top-style: dotted;
	border-right-style: solid;
	border-bottom-style: dotted;
	border-left-style: solid;
}
</style>
</head>
<body>
<p>2 different border styles.</p>
</body>
</html>