Bootstrap breakpoints

size	breakpoint	mod 12	container	%	1 col.
sm	576 px	48	540 px	93.75%	45 px
md	768 px	64	720 px	93.75%	60 px
lg	992 px	82.7	960 px	96.77%	80 px
xl	1200 px	100	1140 px	95%	95 px
xxl	1400 px	116.7	1320 px	94.29%	110 px
xl2*	1440 px	120	1368 px	95%	114 px
xl3*	1680 px	140	1596 px	95%	133 px
xl4*	1920 px	160	1824 px	95%	152 px

• custom size