This Plugin allow increase or decrease easily the font size of your HTML. Try a demo How to use: *Gnclude jquery.js and jquery.fontSizer.js between tags. *Give id's for both links, for example #increase (+) and #decrease (-) *Initialize the plugin, like the folowing: $(document).ready(function(){ $('#increase').fontSizer({ action: "up", max: 36 }); $('#decrease').fontSizer({ action: 'down' }); }