The Semantic Grid System is a modern approach to the CSS grid. It allows you to set column and gutter widths, choose the number of columns, switch between pixels and percentages, and achieve responsive layouts, all without any unsemantic .grid_x classes in your markup. By default it's powered by LESS.js, but also supports SCSS and Stylus.
It lives on the web at tylertate.github.io/semantic.gs/.
If you spot any issues or have ideas for improvement, feel free to file a ticket or fork on GitHub and issue a pull request.
Licensed under Apache 2.0. See LICENSE
The Semantic Grid System was built by Tyler Tate at TwigKit.