# Aspect Ratio The Aspect Ratio utility uses the native CSS aspect-ratio property to maintain consistent proportions for elements. Perfect for images, videos, and containers that need to maintain specific width-to-height ratios across different screen sizes. ### Basic Usage Use predefined aspect ratio classes to constrain element dimensions to specific proportions. These utilities apply the CSS `aspect-ratio` property directly to elements. 1:1 16:9 3:4 Aspect RatioBasic Usage
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## Available Aspect Ratios Complete reference of all available aspect ratio utilities. | Class | Ratio | | --- | --- | | `aspect--auto` | No constraints | | `aspect--1/1` | 1:1 | | `aspect--4/3` | 4:3 | | `aspect--3/2` | 3:2 | | `aspect--16/9` | 16:9 | | `aspect--21/9` | 21:9 | | `aspect--3/4` | 3:4 | | `aspect--2/3` | 2:3 | | `aspect--9/16` | 9:16 | | `aspect--9/21` | 9:21 | Previous [Grid Create grid layouts with predefined column structures](/framework/docs/grid) Next [Responsive Adapt styles based on screen width using breakpoint prefixes](/framework/docs/responsive)