W3School TIY Editor
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<html> <body> Here comes a long quotation: <blockquote> This is a long quotation. This is a long quotation. This is a long quotation. This is a long quotation. This is a long quotation. </blockquote> 请注意，浏览器在 blockquote 元素前后添加了换行，并增加了外边距。 </body> </html>