Thank you xnau for this wonderful plugin!
I'm currently facing a little problem: The CSS for fields which are missing or have not passed validation is not working.
I tested the plugin on two independent sites with three themes including TwentyEleven and non of them worked.
Please see the plugin in action here: https://ssl-id.de/eta.djso.de/wp/
What could be the reason for this mistake?
Thanks for answers!