Color text

This really depends on what plugin or similar you are using to power the quiz.

Would it be possible to share a link to your site?

Hello,

This is QSM plugin, user dashboard addon.

As You can only see the quiz results if You filled out a quiz, let me give You an end-user account.

Then You can go through fast on this quiz (20 questions):
https://furedyachtoktatas.hu/probavizsga/kedvtelesi/hajozasi-szabalyzat-modul/

And check Your result page here:
https://furedyachtoktatas.hu/eredmenyeim/

Where can I send You login credentials please?

Hello,

Did you have a chance to check it please?

Unfortunately, without seeing the page, I can’t tell what CSS selectors to use, but in general you’d want a snippet like this:

add_action( 'wp_head', function () {
<style>

/* css code here */

</style>
} );