aspect-ratio is a CSS media feature whose value is the width-to-height aspect <ratio> of the viewport.
| Specification | Status | Comment |
|---|---|---|
| Media Queries The definition of 'aspect-ratio' in that specification. | Recommendation | Initial definition. |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | ? | 3.5 (1.9.1) | 9.0 | ? | ? |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? |
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https://developer.mozilla.org/en-US/docs/Web/CSS/@media/aspect-ratio