Back to the source. TASS does not provide any complex syntaxes or functions, so this is just little better CSS. TASS is like SCSS in SASS and can be used with only browsers like LESS because written in JavaScript. Check it out! <link rel="stylesheet/tass" type="text/x-tass" href="styles.tass"/> <script type="text/javascript" src="tass.js"></script> Download Variables $base-color : #333; $base-back