源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>开源教程(ossoft.cn)</title> <style> p { max-width:20%; background-color:yellow; } </style> </head> <body> <p>This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text.</p> </body> </html>
运行结果