Creating a Dynamic PHP/CSS Page (newbie design question)

Hi Folks, My goal: is to have a template form to control css styles, where the user fills out choices in a template form page and the results might get stored in a MysQL prefs table. But I guess you can't have php mixed with .CSS page ... so is the best way to do this like: ...? - set a a normal mystyle.css style sheet with no php but with all possible choices - then - on the css prefs form page you might have choices like: fontsize = small or med or big etc. then you might store the 'actual' css name (on the real css style sheet) associated with the choice like : style = "HEADER1" or whatever based on the choice then let's say I have a page: mypage.php that links to a css style sheet: mystyle.css - then the php page might use it like: class = "<?php echo $thischoice; ?>" for "HEADER1" Q: Is that the best way to setup dynamic css choices using php? Any comments would be appreciated - dave Thanks, cool@hosting4days.com