Groundwork is a front-end framework especially made for Drupal. It is being developed to help you design beautiful websites faster and more efficient. As its name implies, it's a groundwork which comes already with sensible generic style defaults, CSS browser hacks, collection of mixins, bundles and more. It is friendly to site builders as well as extensible to more advanced users.
Because of Groundwork's basic generic style, you may awish to use its starter sub-theme as is, as a structured minimalistic theme or design your own.
Groundwork uses a 12 grid system as default. The layout options available are endless, which makes the Groundwork suite of themes extremely versatile. Customizing a website to specific layout and design is very easy.
Groundwork supports 16 regions. They are available to you for unlimited block placement and layout options.