flex-1 Tailwind CSS Class

Grow and shrink equally. The generated CSS output is flex: 1 1 0%. This page gives you the generated CSS output, a copy-paste example, and an interactive demo for search-friendly utility lookups.

Quick Answer

flex-1 maps to flex: 1 1 0%. It belongs to the Flexbox category and was generated from Tailwind CSS v4.1.14 reference data.

Interactive Demo

Toggle the utility on and off, switch preview surfaces, and adjust the demo content to see how this class behaves.

Fixed
Flexible item
Fixed

This preview simulates the effect of flex-1 using structured data generated from your Tailwind reference snapshot.

Class Reference

FieldValue
Utility classflex-1
CategoryFlexbox
CSS outputflex: 1 1 0%
Source pageCheat Sheet
Static slugflex-1

Example Snippet

Use this code snippet as a starting point, then swap the markup around it to fit your component or layout.

html
<div class="flex flex-1 gap-4 rounded-lg border border-slate-200 p-4"><div>One</div><div>Two</div><div>Three</div></div>

Related Utility Pages

gap-4
gap: 1rem
Open utility page ->
flex-none
flex: none
Open utility page ->

Browse More

Return to the Cheat Sheet page for broader browsing, or open the Tailwind CSS Cheat Sheet to move across categories quickly.