Modify Web Page Content in Safari 12? The tool I was using to block #hot-network-questions is now blocked in Safari 12.

I can see some ad blockers are still allowed, but I cannot find one which allows custom blocking specific content.

Can anyone recommend a way to block specific content in the new Safari 12 world?
AdBlock still works - better than the newer App Store version - on Mojave &amp; Safari 12.

You can simply drag a box round content you want rid of &amp; then shift a slider until you're happy, then Click Done.
I use it on SE to remove the Watched &amp; Ignored Tags sections, as well as standard ads.