<commit_before># Autoprefixer Core [![Build Status](https://travis-ci.org/postcss/autoprefixer-core.png)](https://travis-ci.org/postcss/autoprefixer-core)

<img align="right" width="94" height="71" src="http://postcss.github.io/autoprefixer/logo.svg" title="Autoprefixer logo by <NAME>">

Autoprefixer is a tool to parse CSS and add vendor prefixes using values
from [Can I Use].

This is core package to build Autoprefixer plugin for some environment
(like [grunt‑autoprefixer]). For end-user documentation, features
and plugins list visit [main Autoprefixer] project.

Sponsored by [<NAME>]. Based on [PostCSS] framework.

[grunt‑autoprefixer]: https://github.com/nDmitry/grunt-autoprefixer)
[main Autoprefixer]:  https://github.com/postcss/autoprefixer
[Evil Martians]:      http://evilmartians.com/
[Can I Use]:          http://caniuse.com/
[PostCSS]:            https://github.com/postcss/postcss

## Quick Example

Write your CSS rules without vendor prefixes (in fact, forget about them
entirely):

```css<commit_msg>Correct URL typo in README<commit_after># Autoprefixer Core [![Build Status](https://travis-ci.org/postcss/autoprefixer-core.png)](https://travis-ci.org/postcss/autoprefixer-core)

<img align="right" width="94" height="71" src="http://postcss.github.io/autoprefixer/logo.svg" title="Autoprefixer logo by <NAME>">

Autoprefixer is a tool to parse CSS and add vendor prefixes using values
from [Can I Use].

This is core package to build Autoprefixer plugin for some environment
(like [grunt‑autoprefixer]). For end-user documentation, features
and plugins list visit [main Autoprefixer] project.

Sponsored by [<NAME>]. Based on [PostCSS] framework.

[grunt‑autoprefixer]: https://github.com/nDmitry/grunt-autoprefixer
[main Autoprefixer]:  https://github.com/postcss/autoprefixer
[Evil Martians]:      http://evilmartians.com/
[Can I Use]:          http://caniuse.com/
[PostCSS]:            https://github.com/postcss/postcss

## Quick Example

Write your CSS rules without vendor prefixes (in fact, forget about them
entirely):

```css
{'fraction_non_alphanumeric': 0.12961165048543688, 'fraction_numerical': 0.003883495145631068, 'mean_word_length': 4.7091412742382275, 'pattern_counts': {'":': 0, '<': 9, '<?xml version=': 0, '>': 9, 'https://': 10, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '1102081', 'n_tokens_mistral': 691, 'n_tokens_neox': 707, 'n_words': 187}