On a recent project, I had an existing site that needed a responsive facelift. I needed to work within an old Ruby on Rails app, that was very slow in terms of page refresh time when developing locally. So I wanted to speed up the page refresh within the old app, especially since the very nature of responsive stylesheets (SASS/SCSS partials) can take a while to compile in the first place. I was using Compass to compile the SASS/SCSS partials which didn’t really meet my needs at all in terms of speed. So I tried a different approach.