Well the shadow is an image put into the css the code is
Code:
li.ibm-first{background-image:none;padding-left:19px;}#ibm-metrics{background:url(//www.ibm.com/i/v16/t/template-bottom-930.gif) no-repeat 50% 0;margin:0;padding:0;height:15px;}
Same with the right and left shadow. Then the background color is just
Code:
{background:#CCC;color:#000
Dosen't look to hard but that is how they did it.