小旋风SEO教程 TIY
编辑您的代码：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><style type="text/css"> p:first-child { color: red; } </style><link rel="canonical" href="https://www.xxfseo.com/w3c/tiy/t.asp-f=csse_first-child_1.html" /></head><body><p>some text</p><p>some text</p></body></html>
查看结果: