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Flex grow

The flex grow class sets the flex-grow property. It controls how a flex item will grow relative to other items when extra space is available in the container. Overview
CSS Shortcut class Applied style 
flex-grow
 
flex-grow: 1;
 
flex-grow-0
 
flex-grow: 0;

Examples

Grow
flex-grow

The item with the flex-grow class will expand to fill the available space, while the other two items maintain their natural size and won’t grow.

1

2

3

<div class="d-flex">
  <p class="flex-none">1</p>
  <p class="flex-grow">2</p>
  <p class="flex-none">3</p>
</div>

No grow
flex-grow-0

The item with the flex-grow-0 class won’t grow to fill the available space, while the other two items will expand to fill the remaining space.

1

2

3

<div class="d-flex">
  <p class="flex-grow">1</p>
  <p class="flex-grow-0">2</p>
  <p class="flex-grow">3</p>
</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:flex-grow ...">
  ...
</div>
Learn more about the responsive layout prefix. 2025-10-01