<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Bug 1055658 - Relative positioning for ruby</title> <link rel="stylesheet" href="common.css"> <style> body { line-height: 80px; } rtc, rt { font-size: 100% !important; line-height: 1 !important; } </style> </head> <body> <ruby style="position: relative;"> <rb>base</rb> <rtc><rt>a<span style="position: relative; top: -10px;">b</span>c</rt></rtc> <rtc><div style="width: 50px; height: 0;"></div></rtc> </ruby> </body> </html>