1. Sizing
  2. max-block-size

Sizing

max-block-size

Utilities for setting the maximum block size of an element.

ClassStyles
max-block-<number>
max-block-size: calc(var(--spacing) * <number>);
max-block-<fraction>
max-block-size: calc(<fraction> * 100%);
max-block-none
max-block-size: none;
max-block-px
max-block-size: 1px;
max-block-full
max-block-size: 100%;
max-block-screen
max-block-size: 100vh;
max-block-dvh
max-block-size: 100dvh;
max-block-dvw
max-block-size: 100dvw;
max-block-lvh
max-block-size: 100lvh;
max-block-lvw
max-block-size: 100lvw;

Examples

Basic example

Use max-block-<number> utilities like max-block-24 and max-block-64 to set an element to a fixed maximum block size based on the spacing scale:

max-block-80
max-block-64
max-block-48
max-block-40
max-block-32
<div class="block-96 ...">  <div class="block-full max-block-80 ...">max-block-80</div>  <div class="block-full max-block-64 ...">max-block-64</div>  <div class="block-full max-block-48 ...">max-block-48</div>  <div class="block-full max-block-40 ...">max-block-40</div>  <div class="block-full max-block-32 ...">max-block-32</div></div>

Using a percentage

Use max-block-full or max-block-<fraction> utilities like max-block-1/2 and max-block-2/5 to give an element a percentage-based maximum block size:

max-block-9/10
max-block-3/4
max-block-1/2
max-block-full
<div class="block-96 ...">  <div class="block-full max-block-9/10 ...">max-block-9/10</div>  <div class="block-full max-block-3/4 ...">max-block-3/4</div>  <div class="block-full max-block-1/2 ...">max-block-1/2</div>  <div class="block-full max-block-full ...">max-block-full</div></div>

Using a custom value

Use the max-block-[<value>] syntax to set the maximum block size based on a completely custom value:

<div class="max-block-[220px] ...">  <!-- ... --></div>

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

<div class="max-block-(--my-max-block-size) ...">  <!-- ... --></div>

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

Responsive design

Prefix a max-block-size utility with a breakpoint variant like md: to only apply the utility at medium screen sizes and above:

<div class="block-48 max-block-full md:max-block-screen ...">  <!-- ... --></div>

Learn more about using variants in the variants documentation.

Customizing your theme

The max-block-<number> utilities are driven by the --spacing theme variable, which can be customized in your own theme:

@theme {  --spacing: 1px; }

Learn more about customizing the spacing scale in the theme variable documentation.

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