Text links in each corner??

Hi Cargo,

First of all, I'm a total noob at code, so please bear with me!

I am looking to copy the "one line of fixed text in each corner" –style of this website:

http://www.ashleaoneill.com/index.html

It is essentially four headers (I guess), one in each corner which is fixed text, and each are able to link to different pages, or just stay text.

I am also looking to have these four fixed text links to be in place on all project and pages.

I have not upgraded my account, so I only have acces to CSS, not Custom HTML

Thank you very much in advance!

–Kristoffer