<div class=”outer”> <div class=”box-1″> —— </div> <div class=”box-2″> —— </div> </div> <style> .outer{ overflow:hidden; } .box-1{ float:left; } .box-1{ float:left; border-left:red 1px solid; padding-bottom:9999px; margin-bottom:-9999px; } </style>
<div class=”outer”> <div class=”box-1″> —— </div> <div class=”box-2″> —— </div> </div> <style> .outer{ overflow:hidden; } .box-1{ float:left; } .box-1{ float:left; border-left:red 1px solid; padding-bottom:9999px; margin-bottom:-9999px; } </style>