<!DOCTYPE HTML> <title>Bug 1405929 reftest reference</title> <style> table { border-collapse: collapse; display: inline-table; vertical-align: top; margin: 20px; width: 20px; } td { background: green border-box; padding: 20px; width: 10px; } .bb { border-bottom: 5px dashed fuchsia; } </style> <table> <tbody> <tr> <td> <td> <tr> <td colspan="2" class=bb> <tr> <td colspan="2"> </tbody> </table>