Hello mantabrook,
It depends on which element you want to style. For instance there is “entry-author” which wraps everything including “by”, and “entry-author-name” which is just the name. If you right click on an element and click inspect it will show you the CSS classes attached to it. Example.
To target just archive pages you can add a parent selector like “body.archive.tag”. If you only want it to affect events pages, you might need to get even more specific. Again you can view all the classes attached to body by using the inspector.
Does that information help? I certainly hope so! Let me know if I misunderstood or anything. Cheers!
– Brook