A CSS framework for cross-device layouts .grid_5 .clearfix 960 px Everyone writes CSS differently. Less Framework takes this into account by having a minimal set of features, and does away with things like predefined classes. All it really contains are: a set of media-queries typography presets aligned to a 24 px baseline grid and a grid, with its column sizes noted down within CSS comments. Nothing more, nothing less. It doesnâ€™t try to do anything for you, and doesnâ€™t change the way you work.