Bring CSS styles from Read the Docs addons into ad client

[humitos]

Read the Docs publisher define specific CSS rules to style the ad in a different way. We talked about moving these styles into the ad client itself and rely on light / dark styles only instead of theme based like ethical-alabaster.

Reference:

• EthicalAds: use theme-logic to decide position  addons#309 (review)
• EthicalAd: use placement-bottom to show the ad above the flyout addons#295 (comment)

[ericholscher]

I put this in Q2, because it's a nice refactor while we're doing this work.

[davidfischer]

Are we thinking of bringing styles from RTD to the ad client? Or are we thinking about having RTD just use the built-in styles/ad types rather than doing something custom?

[humitos]

Yeah, I think we are talking about the later: "use dark/light styles from the EA client in Read the Docs publisher".

However, I think we may still want some extra CSS classes in for some themes/doctools. I'm mentioning this because I found, for example, Pelican that renders in a weird way: