Hide Post Header

assuming that the selectors are right, check the css:
https://www.w3schools.com/cssref/pr_class_visibility.asp

just a guess – i have no possibility checking it without a link to your site.

Oh my, newbie mistake, thanks for the heads up. But, the header is still not gone. This is the CSS now:

#index postheader {
  visibility: hidden;
}

Regards,
Angela

can you post a link to the site?

is postheader a css class?

in which case it might need a dot . before the name:
.postheader

Try:

#index .postheader {
  display:none;
}

Or if you want the content to be seen by screen readers, use:

#index .postheader {
  position:absolute;
  left: -1000em
}

Nada, I have no idea why. But I do think that, I don’t have to specify the full selector path, correct? I mean there are some other classes also wrapping around post header, but this selector path should be enough, isn’t it?

Regards,
Angela

Can you show a link?

You mean link to my site?