Margin Block Start

Control an element's logical block start margin.

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

Chrome

Edge

Firefox

Safari

Usage

<div class="d-f fd-r">
  <div class="d-f t-8 ai-c jc-c w-16 h-16 mbs-8 bg-indigo c-white">8</div>
</div>

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

Target viewport sizes with breakpoint prefixes.

sm:mbs-*

Small≥640px

md:mbs-*

Medium≥768px

lg:mbs-*

Large≥1024px

xxl:mbs-*

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:mbs-*

Use negative variants to apply negative margins.

Use the -- syntax to apply negative numeric values.

Syntax:mbs--*