Unless you’re from France, you may not yet have heard about Thelia, an e-commerce system that is getting some international attention, due in no small part to the buzzwords thrown around in the media material released for the launch of the beta version of Thelia 2 in late September.

The full version won’t be launched until the end of this year, but when an e-commerce system is described in terms of open source, Symfony, HTML5, Bootstrap, Propel, PHPUnit, Travis, Smarty and semantic microdata, it warrants some attention.

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?