postcss-discard-empty 
Discard empty rules and values with PostCSS.
Install
With npm do:
npm install postcss-discard-empty --save
Example
For more examples see the tests.
Input
@font-face;
h1 {}
{color:blue}
h2 {color:}
h3 {color:red}Output
h3 {color:red}Usage
See the PostCSS documentation for examples for your environment.
Contributors
Thanks goes to these wonderful people (emoji key):
 Ben Briggs |
 |
 Duncan Beevers |
|---|
This project follows the all-contributors specification. Contributions of any kind welcome!
License
MIT © Ben Briggs