Hello, I would like to learn as much as possible and most importantly where to change the kind of categories: in particular the question is that I need to change the kind of categories (I have the kind of categories in the carousel style, that is, with the arrows on the sides and all 8 categories are displayed in a line, other categories to see them, you need to press the arrows, you can see on the attached screenshots) can you do something like that so that they are displayed in the center of the site in a column and not 8 and more?

@Hunter777
You could just show all the categories in multiple rows.

just show all the categories in multiple rows. And how to do it? tell me and help please

@Hunter
On #top-cat ul set width:100%!important; and hide arrows

And where do I find this file? What is it called?

Style.css in theme folder

that you need to delete or not delete anything but just add it? please tell me how to do it correctly

You said - On # top-cat ul set width: 100%! Important; and hide agros - which line number (where do I need to do this?) and how do I do this? What do I need to delete or not delete? where it is and how to add it - what did you write to me? can you please describe in more detail how to do?

Can I help someone ?

I though you want to know name of file.
Place it as first line. You can check css docs if you are not sure what to do.

Tell me please, after your advice to me how to fix the error that your code sample gives out? I did everything as you wrote to me, but it solved only a part of the problem (in the PHP the red cross appeared on against the 1 line in the Style file) and the site speed fell due to this error + the main categories are displayed as you can see in the screenshot

Tell me how to correctly do it and where and what should I insert? give an example of how to do it

#top-cat ul {width:100%!important;hide arrows;}      Where to insert this code and how to do it correctly. Give an example of how to do it.

Already told you where and on which line. Not sure where you found css code hide arrows;

is this the correct code? # top-cat ul {width: 100%! important; hide arrows;}