[stefanjudis]

Site author here: there's some logic to only show the minimap when there's enough screen estate and it generally fits.

Couldn't be bothered to scrolling/dragging logic. :D

[oneeyedpigeon]

It should definitely take a responsive design into account, I think. The beauty is that most sites, on desktop at least, should be able to benefit — we all have plenty of horizontal real-estate to spare!