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