From Bootstrap - Demo Wiki

A Bootstrap grid is a layout system that creates responsive and flexible designs. It builds on a 12-column grid that allows organizing and aligning content consistently across screen sizes. Editors can easily specify how content should be positioned and resized within the grid using predefined classes.

Grids are built using a main div with the container CSS class, subdivided into rows and again into columns. Check the example pages below for different grid layouts.

See also

On this wiki
External website