It looks like this can be changed with `setProperty`. There's a demo[1] that works on Firefox 31+ and Chrome 49+ [1] https://www.broken-links.com/2014/08/28/cs

It looks like this can be changed with `setProperty`. There's a demo[1] that works on Firefox 31+ and Chrome 49+ [1] https://www.broken-links.com/2014/08/28/css-variables-updating-custom-properties-javascript/ https://www.broken-links.com/2014/08/28/css-variables-updati...