# 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 |
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