putting two boxes of span6 side by side with shadow

[Angelo Chen]

Hi,

Following code works if box is not yet defined:

<div class="container">
    <div class="row">
        <!-- left -->
        <div class="span6 box"></div>
        <!-- right -->
        <div class="span6 box"></div>
    </div>
</div>

if box has been defined, the two boxes will not be side by side, but
one after the other, the complete gist is here:

https://gist.github.com/2762149

any hints on how to make it work? Thanks,

Angelo