<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
p.none {border-bottom-style:none;}
p.dotted {border-bottom-style:dotted;}
p.dashed {border-bottom-style:dashed;}
p.solid {border-bottom-style:solid;}
p.double {border-bottom-style:double;}
p.groove {border-bottom-style:groove;}
p.ridge {border-bottom-style:ridge;}
p.inset {border-bottom-style:inset;}
p.outset {border-bottom-style:outset;}
</style>
</head>
<body>
<p class="none">无下边框</p>
<p class="dotted">点下边框</p>
<p class="dashed">虚线下边框</p>
<p class="solid">实线下边框</p>
<p class="double">双线下边框</p>
<p class="groove">凹槽下边框</p>
<p class="ridge">垄状下边框</p>
<p class="inset">嵌入下边框</p>
<p class="outset">外凸下边框</p>
</body>
</html>
