- Width helpers: `w-100`, `w-50`, `w-33`, `w-25`, `w-10` - Font-size helpers: `t-s` (small), `t-m` (medium), `t-l` (large) - Pulse background helper: `pul-1` (once), `pul-inf` (infinite) - Fixed nav helper: `fixed`
w-100,w-50,w-33,w-25,w-10t-s(small),t-m(medium),t-l(large)pul-1(once),pul-inf(infinite)fixed