代码示例:(标识:css_lang)
<!DOCTYPE html>
<html>
<head>
<style>
q:lang(en) {
  quotes: "~" "~";
}
</style>
</head>
<body>

<p>Some text <q lang="en">A quote in a paragraph</q> Some text.</p>

<p>在本例中,:lang 为 lang="en" 的 q 元素定义引号:</p>

</body>
</html>
运行结果: