Containers
Containers are a fundamental building block of Bootstrap that contain, pad, and align your content within a given device or viewport.
How they work
Containers are used to contain, pad, and (sometimes) center the content within them. While containers can be nested, most layouts do not require a nested container.
The table below illustrates how each container's max-width
compares to the original .container
and .container-fluid
across each breakpoint.
Extra small <576px |
Small ≥576px |
Medium ≥768px |
Large ≥992px |
X-Large ≥1200px |
XX-Large ≥1400px |
|
---|---|---|---|---|---|---|
.container |
100% | 540px | 720px | 960px | 1140px | 1320px |
.container-sm |
100% | 540px | 720px | 960px | 1140px | 1320px |
.container-md |
100% | 100% | 720px | 960px | 1140px | 1320px |
.container-lg |
100% | 100% | 100% | 960px | 1140px | 1320px |
.container-xl |
100% | 100% | 100% | 100% | 1140px | 1320px |
.container-xxl |
100% | 100% | 100% | 100% | 100% | 1320px |
.container-fluid |
100% | 100% | 100% | 100% | 100% | 100% |
Default container
Our default .container
class is a responsive, fixed-width container, meaning its max-width
changes at each breakpoint.
<div class="container">
<!-- Content here -->
</div>
Fluid containers
Use .container-fluid
for a full width container, spanning the entire width of the viewport.
<div class="container-fluid">
<!-- Content here -->
</div>
Responsive
Responsive containers allow you to specify a class that is 100% wide until the specified breakpoint is reached, after which we apply max-width
s for each of the higher breakpoints. For example, .container-sm
is 100% wide to start until the sm
breakpoint is reached, where it will scale up with md
, lg
, xl
, and xxl
.
<div class="container-sm">100% wide until small breakpoint</div>
<div class="container-md">100% wide until medium breakpoint</div>
<div class="container-lg">100% wide until large breakpoint</div>
<div class="container-xl">100% wide until extra large breakpoint</div>
<div class="container-xxl">100% wide until extra extra large breakpoint</div>
Customizing
Values
As shown above, Bootstrap generates a series of predefined container classes to help you build the layouts you desire. You may customize these predefined container classes by modifying the Sass map that powers them:
$container-max-widths: (
sm: 540px,
md: 720px,
lg: 960px,
xl: 1140px,
- xxl: 1320px
);