Examples

Basic example

Use utilities like font-thin and font-bold to set the font weight of an element:

Using a custom value

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

<p class="font-[1000] ...">
  Lorem ipsum dolor sit amet...
</p>

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

<p class="font-(--my-font-weight) ...">
  Lorem ipsum dolor sit amet...
</p>

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

Responsive design

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

<p class="font-normal md:font-bold ...">
  Lorem ipsum dolor sit amet...
</p>

Learn more about using variants in the variants documentation.

Customizing your theme

Use the --font-weight-* theme variables to customize the font weight utilities in your project:

@theme {
  --font-weight-extrablack: 1000; 
}

Now the font-extrablack utility can be used in your markup:

<div class="font-extrablack">
  <!-- ... -->
</div>

Learn more about customizing your theme in the theme documentation.