I have been through nearly every thread and tutorial online for this, but realize I may need more customized help. I'm starting to advertise and would like to add a 728x90 banner to the top of the site, that is always there. My site is: MyEyeshadowConsultant.com
I can read and edit CSS, but providing the exact coding language for the header.php file and stylesheet would be VERY helpful; I know that's where I'm running into issues.
Thank you in advance for any guidance.