Center responsive elements with a class, horizontally and vertically. Inspired by the jquery plugin Midway.js, but in pure Javascript.
Visit http://uplaod.fr/upgit/upcenter-js/
upCenter.js is licensed under The MIT License (MIT)
Copyright (c) 2015 uplaod
This license is also supplied with the release and source code.
As stated in the license, absolutely no warranty is provided.