<!DOCTYPE HTML> <html><head> <meta charset="utf-8"> <title>Testcase for bug 789824</title> <style type="text/css"> html,body { color:black; background-color:white; font-size:24px; padding:0; margin:0; } div { padding:5px; } hbox { display:-moz-box; border-top:3px solid; border-bottom:2px solid; padding-bottom:4px; background:lime; box-sizing:content-box; } .cb { background:pink; box-sizing:border-box; } .pb { background:cyan; } </style> </head> <body> <div><hbox style="height:11px;">border-box 20px</hbox></div> <div><hbox style="height:41px;">border-box 50px</hbox></div> <div><hbox style="height:11px;">border-box 20px</hbox></div> <div><hbox class="cb" style="height:29px;">content-box 20px</hbox></div> <div><hbox class="cb" style="height:59px;">content-box 50px</hbox></div> <div><hbox class="cb" style="height:29px;">content-box 20px</hbox></div> </body> </html>