Yeah I was thinking about something similar, e.g. using attr()* and a pseudoelement to pass the value from DOM to CSS of a ::before/::after pseudo-element. But

Yeah I was thinking about something similar, e.g. using attr()* and a pseudoelement to pass the value from DOM to CSS of a ::before/::after pseudo-element. But that still feels like asking for trouble:) Luckily I need to leave the house now, I'm feeling CSS naughty. * IIRC support for anything besides `content:` is still very unstable.