This is what we are using to block the ratings section on one of our sites and the class is the same as yours. Perhaps give it a shot:
.kb-container-column .author, .kb-container-column .kb-title-header, .kb-container-column .kb-panel-heading, .kb-container-column .published, .kb-container-column .views, .kb-container-column .text-nowrap.ng-scope, .kb-container-column .kb-header-line, .kb-container-column .kb-line, .kb-container-column .kb-permalink-separator, .kb-container-column .kb-permalink, .kb-container-column .rating-section, .kb-container-column .help-use-text {
display: none;
}
You could also try this (if you're not familiar with CSS, the !important is a way to say "Don't apply other styles, just this one"). It feels a little hacky and many consider it poor practice (they would say that the CSS is poorly created if you need it) but it's common to see in the platform because we have styles forced upon us.
.kb-container-column .author, .kb-container-column .kb-title-header, .kb-container-column .kb-panel-heading, .kb-container-column .published, .kb-container-column .views, .kb-container-column .text-nowrap.ng-scope, .kb-container-column .kb-header-line, .kb-container-column .kb-line, .kb-container-column .kb-permalink-separator, .kb-container-column .kb-permalink, .kb-container-column .rating-section, .kb-container-column .help-use-text {
display: none !important;
}
I would have thought you could simply do this:
.rating-section {
display: none !important;
}
I would also put this at the page level myself for simplicity.
