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See how aspects of the Bootstrap grid system work across multiple devices with a handy table. check the official website grid page
xs <576px |
sm ≥576px |
md ≥768px |
lg ≥992px |
xl ≥1200px |
xxl ≥1400px |
|
---|---|---|---|---|---|---|
Container max-width |
None (auto) | 540px | 720px | 960px | 1140px | 1320px |
Class prefix | .col- |
.col-sm- |
.col-md- |
.col-lg- |
.col-xl- |
.col-xxl- |
# of columns | 12 | |||||
Gutter width | 1.5rem (.75rem on left and right) | |||||
Custom gutters | Yes | |||||
Nestable | Yes | |||||
Column ordering | Yes |
Grid classes apply to devices with screen widths greater than or equal to the breakpoint
sizes, and override grid classes targeted at smaller devices. Therefore, applying any
.col-md-
class to an element will not only affect its styling on medium devices
but also on large devices if a .col-lg-
class is not present.
Using a single set of .col-md-*
grid classes, you can
create a default 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 .row
.
<div class="row show-grid">
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
<div class="col-md-1">.col-md-1</div>
</div>
<div class="row show-grid">
<div class="col-md-8">.col-md-8</div>
<div class="col-md-4">.col-md-4</div>
</div>
<div class="row show-grid">
<div class="col-md-4">.col-md-4</div>
<div class="col-md-4">.col-md-4</div>
<div class="col-md-4">.col-md-4</div>
</div>
<div class="row show-grid">
<div class="col-md-6">.col-md-6</div>
<div class="col-md-6">.col-md-6</div>
</div>
Don't want your columns to simply stack in smaller devices? Use the
extra small and medium device grid classes by adding .col-xs-*
.col-md-*
to your columns. See the example below for a better idea of how it
all works.
<div class="row show-grid">
<div class="col-xs-12 col-md-8">.col-xs-12 .col-md-8</div>
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
</div>
<div class="row show-grid">
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
</div>
<div class="row show-grid">
<div class="col-xs-6">.col-xs-6</div>
<div class="col-xs-6">.col-xs-6</div>
</div>
Build on the previous example by creating even more dynamic and
powerful layouts with tablet .col-sm-*
classes.
<div class="row bg-sec mb-2 p-10 mt-3">
<div class="col-xs-12 col-sm-6 col-md-8">.col-xs-12 .col-sm-6 .col-md-8</div>
<div class="col-xs-6 col-md-4">.col-xs-6 .col-md-4</div>
</div>
<div class="row show-grid">
<div class="col-xs-6 col-sm-4">.col-xs-6 .col-sm-4</div>
<div class="col-xs-6 col-sm-4">.col-xs-6 .col-sm-4</div>
<!-- Optional: clear the XS cols if their content doesn't match in height -->
<div class="clearfix visible-xs"></div>
<div class="col-xs-6 col-sm-4">.col-xs-6 .col-sm-4</div>
</div>
With the four tiers of grids available you're bound to run into issues
where, at certain breakpoints, your columns don't clear quite right as one is taller than
the other. To fix that, use a combination of a .clearfix
and our responsive
utility classes.
<div class="row bg-sec mb-2 p-10 mt-3">
<div class="col-xs-6 col-sm-3"> .col-xs-6 .col-sm-3
<br> Resize your viewport or check it out on your phone for an example. </div>
<div class="col-xs-6 col-sm-3">.col-xs-6 .col-sm-3</div>
<!-- Add the extra clearfix for only the required viewport -->
<div class="clearfix visible-xs"></div>
<div class="col-xs-6 col-sm-3">.col-xs-6 .col-sm-3</div>
<div class="col-xs-6 col-sm-3">.col-xs-6 .col-sm-3</div>
</div>
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.
<div class="row bg-sec mb-2 p-10 mt-3">
<div class="col-md-4">.col-md-4</div>
<div class="col-md-4 offset-md-4">.col-md-4 .col-md-offset-4</div>
</div>
<div class="row bg-sec mb-2 p-10 mt-3">
<div class="col-md-3 offset-md-3">.col-md-3 .col-md-offset-3</div>
<div class="col-md-3 offset-md-3">.col-md-3 .col-md-offset-3</div>
</div>
<div class="row bg-sec mb-2 p-10 mt-3">
<div class="col-md-6 offset-md-3">.col-md-6 .col-md-offset-3</div>
</div>
<div class="container px-lg-5">
<div class="row mx-lg-n5">
<div class="col py-3 px-lg-5 bg-sec border">Custom column padding</div>
<div class="col py-3 px-lg-5 bg-sec border">Custom column padding</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col bg-sec border p-3">
First, but unordered
</div>
<div class="col order-12 bg-sec border p-3">
Second, but last
</div>
<div class="col order-1 bg-sec border p-3">
Third, but first
</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-sm-9 bg-sec border p-3">
Level 1: .col-sm-9
<div class="row">
<div class="col-8 col-sm-6 bg-sec border p-3">
Level 2: .col-8 .col-sm-6
</div>
<div class="col-4 col-sm-6 bg-sec border p-3">
Level 2: .col-4 .col-sm-6
</div>
</div>
</div>
</div>
</div>