bootstrap TAB ul styling?

hi,
I am using the standard bootstrap TAB.
It looks nice but perhaps a bit basic - does anyone know how to style it better and
perhaps add shadow?

       <div class="col-sm-6">                                    <ul class="nav nav-tabs ">     <li class="active"><a href="#">Bio</a></li>       <li><a href="#music">xxxxx/a></li>     <li><a href="#playlist">xxxx</a></li> <li><a href="#reviews">xxxxx</a></li>             & ...