Incorrect horizontal menu height

[nirmeshs]

Steps to reproduce: Consider http://yui.github.io/skinbuilder/index.html?opt=mine,484E3B,ffffff,1,0.2,0,1.5&h=180,-40,30&n=180,-40,70&l=180,-40,80&b=180,-30,90&mode=pure

Check the horizontal pure menu. The color change for selected / hover items does not cover the entire menu height.

I believe the issue is with the height property of
.pure-skin-mine .pure-menu.pure-menu-horizontal > ul

[ericf]

@nirmeshs we are working on revamping Pure Menus: see pure-css/pure#142