mb-4 Tailwind CSS Class

16px bottom margin. The generated CSS output is margin-bottom: 1rem. This page gives you the generated CSS output, a copy-paste example, and an interactive demo for search-friendly utility lookups.

Quick Answer

mb-4 maps to margin-bottom: 1rem. It belongs to the Spacing 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.

Tailwind utility preview

This preview simulates the effect of mb-4 using structured data generated from your Tailwind reference snapshot.

Class Reference

FieldValue
Utility classmb-4
CategorySpacing
CSS outputmargin-bottom: 1rem
Source pageCheat Sheet
Static slugmb-4

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="rounded-lg border border-slate-200 mb-4">Spacing preview</div>

Related Utility Pages

mt-6
margin-top: 1.5rem
Open utility page ->
space-x-4
margin-inline-start: 1rem (siblings)
Open utility page ->

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