# Autoprefixer
[PostCSS] plugin to parse CSS and add vendor prefixes to CSS rules using values
from [Can I Use]. It is recommended by Google and used in Twitter and Alibaba.
Write your CSS rules without vendor prefixes (in fact, forget about them
entirely):
```css
::placeholder {
color: gray;
}
.image {
width: stretch;
}
```
Autoprefixer will use the data based on current browser popularity and property
support to apply prefixes for you. You can try the [interactive demo]
of Autoprefixer.
```css
::-moz-placeholder {
color: gray;
}
::placeholder {
color: gray;
}
.image {
width: -moz-available;
width: -webkit-fill-available;
width: stretch;
}
```
Twitter account for news and releases: [@autoprefixer].
---
Autoprefixer is built by Evil Martians, an American design and engineering consultancy for developer tools, AI, and cybersecurity startups.
---
[interactive demo]: https://autoprefixer.github.io/
[@autoprefixer]: https://twitter.com/autoprefixer
[Can I Use]: https://caniuse.com/
[PostCSS]: https://github.com/postcss/postcss
## Docs
Read full docs **[here](https://github.com/postcss/autoprefixer#readme)**.