Due the negative -1px left margin applied on href link/span, right border is cut off when we hover over an element. Seems like there needs to be added z-index.

Issue example: http://jsfiddle.net/46s0ys7t/

+1

This would be an easy fix too. In the pagination.less file, elements with the .active class already get a z-index bump. The same thing just needs to be applied to the hover and focus states.