RUNOOB.COM
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> <style> body {font-size:100%;} h1 {font-size:2.5em;} h2 {font-size:1.875em;} p {font-size:0.875em;} </style> </head> <body> <h1>This is heading 1</h1> <h2>This is heading 2</h2> <p>This is a paragraph.</p> <p>在所有浏览器中,可以显示相同的文本大小,并允许所有浏览器缩放文本的大小。</p> </body> </html>
运行结果