Grid Options
 Extra small (<576px)Small (>=576px)Medium (>=768px)Large (>=992px)Extra Large (>=1200px)
Class prefix.col-.col-sm-.col-md-.col-lg-.col-xl-
Grid behaviourHorizontal at all timesCollapsed to start, horizontal above breakpointsCollapsed to start, horizontal above breakpointsCollapsed to start, horizontal above breakpointsCollapsed to start, horizontal above breakpoints
Container widthNone (auto)540px720px960px1140px
Suitable forPortrait phonesLandscape phonesTabletsLaptopsLaptops and Desktops
# of columns1212121212
Gutter width30px (15px on each side of a column)30px (15px on each side of a column)30px (15px on each side of a column)30px (15px on each side of a column)30px (15px on each side of a column)
NestableYesYesYesYesYes
OffsetsYesYesYesYesYes
Column orderingYesYesYesYesYes
Grid Example
col-lg-1col-lg-1col-lg-1col-lg-1col-lg-1col-lg-1col-lg-1col-lg-1col-lg-1col-lg-1col-lg-1col-lg-1
 col-lg-4 col-lg-4 col-lg-4
col-lg-4col-lg-8
col-lg-6col-lg-6
col-lg-12