The docs go over a bunch of edge cases, might as well have it as a test :)
http://lesscss.org/features/
I just had to remove
```css
.weird-element {
content: ^//* some horrible but needed css hack;
}
```
but i'm not sure if it's real less.
I wanted to see how hard it would be to add support for CSS inside of prettier. Turns out, it's not that hard. I spent a few hours printing post-css values and getting all the stylefmt unit tests to not throw.