Build your responsive pages with bootstraps 12 columns grid.

Grid options

See how aspects of the Bootstrap grid system work across multiple devices with the following table.

Extra small devices Phones (<768px) Small devices Tablets (≥768px) Medium devices Desktops (≥992px) Large devices Desktops (≥1200px)
Grid behavior Horizontal at all times Collapsed to start, horizontal above breakpoints
Container width None (auto) 750px 970px 1170px
Class prefix .col-xs- .col-sm- .col-md- .col-lg-
# of columns 12
Column width Auto ~62px ~81px ~97px
Gutter width 30px (15px on each side of a column)
Nestable Yes
Offsets Yes
Column ordering Yes

Grid examples

Resize your browser window to see the coloms behavior in the examples.

Three equal columns

Get three equal-width columns starting at desktops and scaling to large desktops. On mobile devices, tablets and below, the columns will automatically stack.

.col-md-4
.col-md-4
.col-md-4

Three unequal columns

Get three columns starting at desktops and scaling to large desktops of various widths. Remember, grid columns should add up to twelve for a single horizontal block. More than that, and columns start stacking no matter the viewport.

.col-md-3
.col-md-6
.col-md-3

Two columns

Get two columns starting at desktops and scaling to large desktops.

.col-md-8
.col-md-4

Full width, single column

No grid classes are necessary for full-width elements.

Two columns with two nested columns

Nesting is easy just put a row of columns within an existing column. This gives you two columns starting at desktops and scaling to large desktops, with another two (equal widths) within the larger column.
At mobile device sizes, tablets and down, these columns and their nested columns will stack.

.col-md-8
.col-md-6
.col-md-6
.col-md-4

Mixed: mobile and desktop

The Bootstrap 3 grid system has four tiers of classes: xs (phones), sm (tablets), md (desktops), and lg (larger desktops). You can use nearly any combination of these classes to create more dynamic and flexible layouts.
Each tier of classes scales up, meaning if you plan on setting the same widths for xs and sm, you only need to specify xs.

.col-xs-12 .col-md-8
.col-xs-6 .col-md-4
.col-xs-6 .col-md-4
.col-xs-6 .col-md-4
.col-xs-6 .col-md-4
.col-xs-6
.col-xs-6

Mixed: mobile, tablet, and desktop

.col-xs-12 .col-sm-6 .col-lg-8
.col-xs-6 .col-lg-4
.col-xs-6 .col-sm-4
.col-xs-6 .col-sm-4
.col-xs-6 .col-sm-4

Column clearing

Clear floats at specific breakpoints to prevent awkward wrapping with uneven content.

.col-xs-6 .col-sm-3
Resize your viewport or check it out on your phone for an example.
.col-xs-6 .col-sm-3
.col-xs-6 .col-sm-3
.col-xs-6 .col-sm-3

Offset, push, and pull resets

Reset offsets, pushes, and pulls at specific breakpoints.

.col-sm-5 .col-md-6
.col-sm-5 .col-sm-offset-2 .col-md-6 .col-md-offset-0
.col-sm-6 .col-md-5 .col-lg-6
.col-sm-6 .col-md-5 .col-md-offset-2 .col-lg-6 .col-lg-offset-0

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