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Container sizing

The container class sets the max-width property. It changes the size of a container at different viewport sizes to create responsive layouts. Overview
CSS Shortcut class Applied style 
container-xs
 
max-width: 20rem
 
container-sm
 
max-width: 30rem
 
container-md
 
max-width: 48rem
 
container-lg
 
max-width: 62rem
 
container-xl
 
max-width: 71.25rem
 
container-full
 
max-width: 100%

Examples

Extra small
container-xs

This container has a max width of 20rem.
<div class="container-xs">
  This container has a max width of 20rem.
</div>

Small
container-sm

This container has a max width of 30rem.
<div class="container-sm">
  This container has a max width of 30rem.
</div>

Medium
container-md

This container has a max width of 48rem.
<div class="container-md">
  This container has a max width of 48rem.
</div>

Large
container-lg

This container has a max width of 62rem.
<div class="container-lg">
  This container has a max width of 62rem.
</div>

Extra large
container-xl

This container has a max width of 71.25rem.
<div class="container-xl">
  This container has a max width of 71.25rem.
</div>

Full
container-full

This container has a max width of 100%.
<div class="container-full">
  This container has a max width of 100%.
</div>
Conditional styling Apply this style to specific screen sizes Use a responsive layout prefix to apply this class only to a specified screen size. The available breakpoints are:
  • xs: > 480px
  • sm: > 640px
  • md: > 768px
  • lg: > 1024px
  • xl: > 1280px
<div class="xs:container-xl ...">
  ...
</div>
Learn more about the responsive layout prefix. 2025-10-01