Box Sizing

Set the box sizing model for an element.

This feature is well established and works across many devices and browser versions.

Chrome

Edge

Firefox

Safari

Usage

<div class="bs-cb ..."></div>
<div class="bs-bb ..."></div>

Use breakpoint prefixes to target different screen sizes. Styles apply from the breakpoint & up.

Target viewport sizes with breakpoint prefixes.

sm:bs-*

Small≥640px

md:bs-*

Medium≥768px

lg:bs-*

Large≥1024px

xxl:bs-*

Extra Large≥1536px

Apply styles conditionally on hover using the h: prefix.

Add the h: prefix to apply styles only when the user hovers over the element.

Syntax:h:bs-*