Version 3 of Twitter Bootstrap is a major change from all its past versions. It is a mobile-first framework and can claim to be one of the best CSS frameworks for building responsive website designs.

In my last article I focused on building responsive websites using Twitter Bootstrap 2. From that, you should have an idea of how Bootstrap works.

Since Twitter Bootstrap 3 is a mobile-first framework, by default whatever you design or create will be mobile compatible or responsive. Isn’t that cool?