To do that, just enter this code (now with both rules)
That was easier than the other one to remove.
! https://www.altcoinstalks.com
www.altcoinstalks.com##div.windowbg:has(h4:has-text(Altcoins Talks - Cryptocurrency Forum))
www.altcoinstalks.com##div#ticker-container
I will try it out this weekend.
Is it working even after you refresh page and restart browser?
I made my own custom rule for adblocker a while ago, but as soon as I open browser next time News ticker was showing up and moving again.
Note that for updated Chrome browser adblockers are working worse then before.
uBlockorigin is now Lite version with less options to customize.
I suggest switching to Firefox browser and it's forks like Librewolf or Mullvad browser.
EDIT:
I tried two rules you posted but I can still see big ad banner on top.
It appears that news ticker is not visible at the moment, and huge ad in posts are gone (for now).