<!DOCTYPE HTML> <html> <head> <title>system generic linked families</title> <meta charset="utf-8"> <style> body { margin: 50px; } p { margin: 0; display: inline-block; width: 200px; font-size: 32px; line-height: 1.3em; } p + p { margin-top: 5px; } #test p:before { content: "123abc 途外"; } #test p { font-family: -apple-system; } #test { width: 500px } </style> </head> <body> <div id=test> <p lang="zh-cn"></p> <p lang="zh-CN"></p> <p lang="zh_cn"></p> <p lang="zh_CN"></p> </div> </body> </html>