Grid options

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

Extra small
<576px
Small
≥576px
Medium
≥768px
Large
≥992px
Extra large
≥1200px
Grid behavior Horizontal at all times Collapsed to start, horizontal above breakpoints
Max container width None (auto) 540px 720px 960px 1140px
Class prefix .col- .col-sm- .col-md- .col-lg- .col-xl-
# of columns 12
Gutter width 20px (10px on each side of a column)
Nestable Yes
Offsets Yes
Column ordering Yes

Sm Grid-Example

Columns collapse at 576px

.col-sm-3
.col-sm-3
.col-sm-3
.col-sm-3

Md Grid-Example

Columns collapse at 768px

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

Lg Grid-Example

Columns collapse at 992px

.col-lg-6
.col-lg-6

Xl Grid-Example

Columns collapse at 1200px

.col-xl-4
.col-xl-4
.col-xl-4

Grid-Example

Using a single set of .col-sm-* classes, you can create a basic grid system that starts out stacked on extra small devices before becoming horizontal on desktop (medium) devices.

.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-1
.col-sm-2
.col-sm-2
.col-sm-2
.col-sm-2
.col-sm-2
.col-sm-2
.col-sm-3
.col-sm-3
.col-sm-3
.col-sm-3
.col-sm-4
.col-sm-4
.col-sm-4
.col-sm-6
.col-sm-6
.col-sm-12

Offset (Max-Auto)

Move columns to the right using .offset-md-* classes. These classes increase the left margin of a column by * columns. For example, .offset-md-4 moves .col-md-4 over four columns. With the move to flexbox in v4, you can use margin utilities like .mr-auto to force sibling columns away from one another.

.col-sm-8 offset-sm-2
.col-sm-3 ml-auto
.col-sm-3 ml-auto
.col-sm-3
.col-sm-3 offset-sm-3
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