Wagtail Stream Field
This page uses Django Wagtail's StreamField in a set of desktop two column blocks that responsively converge to a single column on mobile view. A previous incarnation of this site used Django Mezzanine, a beautiful content management system with a built in blog that was a delight to use.
I was developing a content management system for permanent employment for a large scalable application when I had to make a decision on the CMS tech to use, and it was a close call between Mezzanine and Wagtail. Both have a beautiful user interface, and can easily produce tailored pages. Wagtail won over in this case, because it is more of a blank slate than Mezzanine. There is less built in, and more documentation on how to create things.