http://ruby.bvision.com/blog/please-stop-embedding-bootstrap-classes-in-your-html
Posted on Feb 29, 2012
A few months ago, Twitter released Bootstrap, a UI framework for websites that caused such an impression that it quickly become the most followed project on Github ded link.
Its popularity is due mostly to the fact that it allows developers with weak design skills such as myself to quickly create an application that looks at worst adequate, and at best, quite attractive. I'm a huge fan.
Bootstrap also appeals to developers because it's implemented in Less, a CSS preprocessor written in Javascript that you can run in your browser, allowing a comfortable developer workflow and compatibility with sites written in Ruby, Python, PHP, or any other technology you can make web applications with.