[robeasthope]

Zurbs' grid uses percentage widths for columns and is mobile-first - BS 3 now uses a similar system which makes the only really difference SASS/SCSS vs LESS if you just want the grid

[mesec]

IIRC, Boostrap 2 can use percentage widths too -- you need to use the "row-fluid" class (instead of just "row").

[robeasthope]

Fair point