rocknbil - 5:27 pm on Feb 20, 2012 (gmt 0)
Welcome aboard poonkave, but you may have to change the display of the anchor to block or inline-block. Right now it's default, inline, so it really has no "height" so won't have a border-top.
This presents another problem. A block element inside an inline element (the LI's) is bound to create more issues, moving forward you may have to change the layout of the LI's.