Source: https://tailwindcss.com/docs/backdrop-filter-brightness

v4.1

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1. Filters
2. brightness

Filters

backdrop-filter: brightness()

Utilities for applying backdrop brightness filters to an element.

| Class | Styles | | --- | --- | | backdrop-brightness-<number> | backdrop-filter: brightness(<number>%); | | backdrop-brightness-(<custom-property>) | backdrop-filter: brightness(var(<custom-property>)); | | backdrop-brightness-[<value>] | backdrop-filter: brightness(<value>); |

Examples

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Basic example

Use utilities like backdrop-brightness-50 and backdrop-brightness-100 to control an element's backdrop brightness:

backdrop-brightness-50

backdrop-brightness-150

<div class="bg-[url(/img/mountains.jpg)]">  <div class="bg-white/30 backdrop-brightness-50 ..."></div></div><div class="bg-[url(/img/mountains.jpg)]">  <div class="bg-white/30 backdrop-brightness-150 ..."></div></div>

Using a custom value

Use the backdrop-brightness-[<value>] syntax to set the backdrop brightness based on a completely custom value:

<div class="backdrop-brightness-[1.75] ...">  <!-- ... --></div>

For CSS variables, you can also use the backdrop-brightness-(<custom-property>) syntax:

<div class="backdrop-brightness-(--my-backdrop-brightness) ...">  <!-- ... --></div>

This is just a shorthand for backdrop-brightness-[var(<custom-property>)] that adds the var() function for you automatically.

Responsive design

Prefix a backdrop-filter: brightness() utility with a breakpoint variant like md: to only apply the utility at medium screen sizes and above:

<div class="backdrop-brightness-110 md:backdrop-brightness-150 ...">  <!-- ... --></div>

Learn more about using variants in the variants documentation .

On this page

• Quick reference

• Examples

  • Basic example

  • Using a custom value

  • Responsive design

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