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Ratio ​

Utility classes for quickly configuring element aspect ratios. Ideal for video containers, images, and iframes requiring proportional scaling.

Basic Usage ​

Basic Usage

Custom Ratios ​

Override the CSS variable --ms-aspect-ratio for custom aspect ratios:

Custom Ratios

Quick Reference ​

ClassStyles
.ratioposition: relative;
.ratio-1x1--ms-aspect-ratio: 100%;
.ratio-4x3--ms-aspect-ratio: 75%;
.ratio-16x9--ms-aspect-ratio: 56.25%;
.ratio-21x9--ms-aspect-ratio: 42.8571428571%;

All classes support responsive prefixes like sm:, md:, lg:, xl: etc.