HTML + CSS rendering issue

Spent the past couple days pulling my hair out and on the road to a brain aneurysm over this.

I've created an HTML + CSS template for Ebay which looks great. Although it does not have the CSS rendered until you refresh the page after you initially open it.

To keep things simple and I'll post the exact test code im using for Ebay:

http://ift.tt/15O5LZl

After its posted and the page is initially opened you see no CSS then the refresh makes the CSS render:

http://ift.tt/15GUBVc <-- 2 pictures

I have a professional page for a product im selling and this obviously wont fly.

This completely baffles me. Ive done everything. All browsers. Hosting the CSS on another site and pointing to it. Nothing works.

Really, anything that can in someway help would be deeply appreciated.Ill keep checking on this post every few hours.

Thanks guys.