Using a single set of
.col-md-* grid classes, you can create a basic grid system that starts out stacked on mobile devices and tablet devices (the extra small to small range) before becoming horizontal on desktop (medium) devices. Place grid columns in any
Move columns to the right using
.col-md-offset-* classes. These classes increase the left margin of a column by
* columns. For example,
.col-md-4 over four columns.