Open Source Content Management 
We are happy to announce Bootstrap, a front-end toolkit for rapidly developing web applications. It is a collection of CSS and HTML conventions. It uses some of the latest browser techniques to provide you with stylish typography, forms, buttons, tables, grids, navigation andeverything else you need
What is the Joomla User Experience?
The mission of the Joomla User Experience Team (JUX Team is to create a great overall user experience for Joomla site administrators, thereby giving site users the same.
After a smaller 2.0.4 release, we've got another huge update that resolves tons of bugs, improves the flexibility and durability of our code, and introduces a few awesome new features. It's a big release wrapped in a brand new set of docs and we couldn't be more stoked to launch it.
New docs, affix plugin, submenus on dropdowns, block buttons, image styles, fluid grid offsets, new navbar, increased font-size and line-height, 120+ closed bugs, and more.
LESS is a dynamic stylesheet language designed by Alexis Sellier. It is influenced by Sass and has influenced the newer "SCSS" syntax of Sass, which adapted its CSS-like block formatting syntax.
LESS is open-source. Its first version was written in Ruby,