Fixed [responsive] page nav spans over several lines

[AlexT]

On the 480×800 screen of a Samsung Galaxy S2, the page nav buttons span over several lines (see screenshot). It makes sense to span once the full width of the screen has reached, but it seems odd that, for example as in the screenshot, the "next" button doesn't show next to the "10" button.

 

[Mike]

To some degree, that's expected due to the way floats and blocks interact, but I've made some changes to shrink the size of the page nav at medium and lower resolutions and to simply disable the floating at narrow resolutions.