Incompatibility with django-bootstrap-admin

[belonesox]

Because of hardcoding CSS rules like that

margin-left: -16em !important;

django-admin-rangefilter/rangefilter/templates/rangefilter/date_filter.html

Line 55 in 1799f78

margin-left: -16em !important;

when rangefilter used in admin panels with attributes in sidebar, DatePicker goes out of left margin of screen, loosing «Mondays» and selector for previous months.

And this even cannot be fixed in application templates in
«{% block extrastyle %}»
because this CSS inlining with «!important».

I have to fork it, to fix by commenting these rules, but I hope, the author can provide better solution.