Bootstrap breakpoint classes to create responsive page behaviour.
Respond to different device sizes.
The outer-most Control in a Bootstrap Grid.
Add rows to a Bootstrap Grid.
Add columns to a Bootstrap Grid.
This tutorial defines how Bootstrap Column Controls are aligned within the Bootstrap Row Control.
The tutorial goes through the Vertical Alignment property which defines how child controls are aligned within the Bootstrap Row Control
This tutorial defines how the column is aligned vertically within its parent Bootstrap Row
Tutorial for ordering columns within a Bootstrap row to be ordered responsively.
A tutorial on offsetting columns.
A Bootstrap Grid based layout.