Thanks for the reply.
> we first would like to know if your using X or Pro.
I am using X.
Also, please give us screenshots of the areas you wish to modify so we could lead you in the right direction.
The specific modification I would like to accomplish is the conditional application of CSS. The CSS would modify the main menu only (see attached screenshot), and be applied only to logged in members. These instructions indicate that I can apply such conditional CSS, but only if I first make a modification to my tag in header.php.
As I mentioned earlier, directly editing header.php is only for testing purposes. The final solution will hopefully not involve doing so.