Half columns in Twitter Bootstrap 3

I couldn't figure out how to make the bootstrap column like this:

col 3 | col 4.5 | col 4.5
59115 次浏览

You can try this :

Just split a col-9 in 2 parts.

Bootply : http://www.bootply.com/128927

HTML :

   <div class="col-xs-3">  col-xs-3 </div>
<div class="col-xs-9">
<div class="row">
<div class="col-xs-6">col-xs-4.5</div>
<div class="col-xs-6">col-xs-4.5  </div>
</div>
</div>