3 ms·That's nice! But I've been using CSS for 2 decades, how did I not know this?!by GordonS 6y agoThat's nice! But I've been using CSS for 2 decades, how did I not know this?!MatmaRex 6y agoIt was not possible 2 decades ago; :checked selector was implemented in IE 9.GordonS 6y agoHehe, I know CSS used to be a lot more basic than it is now, my point was simply that I've been working with CSS for a long time but had somehow missed this nugget.