Where to find the CSS actually used in PDF export?

[Raphael Matter]

I need to customize my Confluence Cloud PDF export and followed the instructions on

https://support.atlassian.com/confluence-cloud/docs/customize-exports-to-pdf/

and used the linked default CSS at

https://confluence.atlassian.com/confcloud/files/724764825/724764826/1/1427771626612/confluencedefaultpdf.css

But actually it looks in many cases that this is not the CSS really used by confluence, Maybe outdated?

How to find out which css classes are used?

Guessing and trying is not an acceptable way.

E.g. on every page there is a light grey border in the middle of the page.

If I disable borders for all elements (using css * selector) it's gone.

But I cannot disable all borders, I only want to find this specific border. But in the deault css provided, there is no matching element with such an border.

So, how to debug the css and pdf export?

Any help is much appreciated! Thanks

[marc -Collabello--Phase Locked-]

The PDF export customization is only for space exports, not for individual page exports.  That might be your issue.

Individual page exports can't be customized by CSS.