Minimal use of [CSSTidy PHP](https://github.com/Cerdic/CSSTidy) library.

csstidytest.php

#!/usr/bin/php
<?php
include 'csstidyphp/class.csstidy.php' ;

$css = new csstidy();

// place the CSS that breaks here
$input = "body .foo {
  *width: 10px;
  width: 50px;
  * height: 100px;
}";

$css->parse($input);

fwrite(STDOUT, $css->print->plain());

?>