Another strategy is to use PHP comments in your CSS. Once parsed, these comments will
automatically disappear. First, you need to tell your server to parse your CSS files for
PHP by adding the following lines to your
AddHandler application/x-httpd-php .css php_value default_mimetype "text/css"
Next, include one- or multiline comments within your CSS file:
<?php // this comment will disappear, a one-liner ?>
For multiline comments:
<?php /* multiline comment here, allows longer comments, that also don't appear in your CSS */ ?>
Again, you trade some server processing power for size.