# Aspect Ratio
Constrains media content to a supported aspect ratio.
## Class names
Each available aspect ratio has an associated class name.
The class can be applied to any component or element.
| Class name | Example |
| :---------------------- | :---------------------------------------------------------------------- |
| `ams-aspect-ratio-9-16` | |
| `ams-aspect-ratio-3-4` | |
| `ams-aspect-ratio-1-1` | |
| `ams-aspect-ratio-4-3` | |
| `ams-aspect-ratio-16-9` | |
| `ams-aspect-ratio-16-5` | |
## Guidelines
- Apply one of these classes to an image, video or other media content to constrain its dimensions to one of the available aspect ratios.
- The default aspect ratio is 16:9.