Currently RB was designed and made for desktop screen resolutions, thus when users access the website on mobile phones with limited screen estates, elements on the sites are often crunched or overlapped on each other, making quick mobile review/checking new contents impossible. With mostly changes to css files only, this change allows elements to resize properly and re-adjust its position to allow easy viewing of the contents, without significant modifications on the actual elements itself.
Current focus are screens with resolution between 360px up to 720px. (720px+ renders fine without additional changes).