PDF CSS - Cannot hide TOC page number

[Alexander Pfeiffer]

I tried to use the instruction "Adding a dynamic title to the title page".

https://support.atlassian.com/confluence-cloud/docs/advanced-pdf-export-customizations/

But I can't get rid of the page-number.

This does not work.

/* Hide the default page numbering for this TOC item */

.toclvl0 .tocnum { display: none; }

Has anybody an idea? I'm a newby to HTML and CSS.

Thanks!