实例如下
<html>
<head>
<title>border-bottom的运用</title>
</head>
<body>
<p style="border-bottom: 8px dotted blue;">
We can read of things that happened 5,000 years ago in the Near East, where people first learned to write. But there are some parts of the world where even now people cannot write. The only way that they can preserve their history is to recount it as sagas.
</p>
<p>Next paragraph</p>
</body>
</html>
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