Hello. I found this wonderful plugin to add a CSS to the opt-in iframe: https://plugins.piwik.org/customoptout#preview
Problem is, it looks like there’s little to style, since I see a simple body tag that doesn’t accept too much styles (eg in HTML5).
Is there any way to modify the HTML, eg. adding a
I could not locate the file where the HTML is generated.
Any help is appreciated!