| # [postcss][postcss]-unique-selectors |
| |
| > Ensure CSS selectors are unique. |
| |
| ## Install |
| |
| With [npm](https://npmjs.org/package/postcss-unique-selectors) do: |
| |
| ``` |
| npm install postcss-unique-selectors --save |
| ``` |
| |
| ## Example |
| |
| Selectors are sorted naturally, and deduplicated: |
| |
| ### Input |
| |
| ```css |
| h1,h3,h2,h1 { |
| color: red |
| } |
| ``` |
| |
| ### Output |
| |
| ```css |
| h1,h2,h3 { |
| color: red |
| } |
| ``` |
| |
| ## Usage |
| |
| See the [PostCSS documentation](https://github.com/postcss/postcss#usage) for |
| examples for your environment. |
| |
| ## Contributors |
| |
| See [CONTRIBUTORS.md](https://github.com/cssnano/cssnano/blob/master/CONTRIBUTORS.md). |
| |
| ## License |
| |
| MIT © [Ben Briggs](http://beneb.info) |
| |
| [postcss]: https://github.com/postcss/postcss |