代码示例:(标识:cssref_default_del)
<!DOCTYPE html>
<html>
<head>
<style>
/* 默认的 CSS 值 */
del {
  text-decoration: line-through;
}
</style>
</head>
<body>

<p>默认情况下,del 元素会这样显示:</p>

<p><del>Some deleted text.</del></p>

<p>自定义的 del 元素(更改 text-decoration):</p>

<p><del style="text-decoration:underline;">Some deleted text.</del></p>

</body>
</html>
运行结果: