<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Bug 1069519 - Ruby line height calculation</title> <link rel="stylesheet" href="common.css"> </head> <body style="line-height: 1"> <ruby> <rb>base</rb> <rtc style="ruby-position: under;"><rt style="color: transparent">text</rt></rtc> </ruby><br> next line </body> </html>