<!DOCTYPE html> <!-- Reftest 2 for Bug 1395777 (test file) --> <html lang="zh-TW"> <head> <meta charset="UTF-8"> <style> html { font-size: xx-large; } rtc { writing-mode: vertical-rl; text-orientation: upright; } </style> </head> <body> <ruby> <rbc>BASE</rbc><rtc>LONGRT</rtc> </ruby> </body> </html>