[] is a very basic CSS minifier.

It guarantees two things :

• browsers can not tell the difference between the original and the minified CSS
• lawyers can not tell the difference between the original and the minified CSS

Compared to other minifiers, [] is purely focused on correctness and fidelity.
[] only collapses whitespace and comments while preserving those comments that are important for legal compliance.

[] is not a CSS optimizer, it does not try to reduce the size of the CSS file by altering the CSS itself.

<example.css>

becomes :

<example.expect.css>