Box Sizingv1.2.0+

Utilities for controlling how the browser should calculate an element's total size.

@include('_partials.class-table', [ 'rows' => [ [ '.box-border', 'box-sizing: border-box;', ], [ '.box-content', 'box-sizing: content-box;', ], ] ])

Include borders and padding

Use box-border to set an element's box-sizing to border-box, telling the browser to include the element's borders and padding when you give it a height or width.

This means a 100px × 100px element with a 2px border and 4px of padding on all sides will be rendered as 100px × 100px, with an internal content area of 88px × 88px.

Tailwind makes this the default for all elements in our preflight base styles.

@component('_partials.code-sample', ['class' => 'bg-white p-8 flex items-center justify-around'])

@slot('code')
@endslot @endcomponent

Exclude borders and padding

Use box-content to set an element's box-sizing to content-box, telling the browser to add borders and padding on top of the element's specified width or height.

This means a 100px × 100px element with a 2px border and 4px of padding on all sides will actually be rendered as 112px × 112px, with an internal content area of 100px × 100px.

@component('_partials.code-sample', ['class' => 'bg-white p-8 flex items-center justify-around'])

@slot('code')
@endslot @endcomponent

Responsive

To control the box-sizing at a specific breakpoint, add a {screen}: prefix to any existing box-sizing utility. For example, use md:box-content to apply the box-content utility at only medium screen sizes and above.

<div className="box-border md:box-content ...">
  {/* ... */}
</div>

For more information about Tailwind's responsive design features, check out the Responsive Design documentation.

Customizing

@include('_partials.variants-and-disabling', [ 'utility' => [ 'name' => 'box-sizing', 'property' => 'boxSizing', ], 'variants' => $page->config['variants']['boxSizing']->all(), ])

Tailwind UI is now in early access!