I'm also web-design challenged...
I think you should mention that you resize a viewer's browser window to full screen. Which, by the way, doesn't work properly on Firefox on a Mac. Whatever code you're using leaves the upper-left corner where it is and sizes the window to the width of the screen so your site is off to the right somewhere.
The proper way to do this is to open a chromeless window full screen.
Forgive me if my irritation shows.
And I didn't look at your pictures. I closed the tab and fixed my browser.