Just make it work!

A little background for those not familiar with HTML. A fixed background in a website means that when the user scrolls down, say, to read an article - the background "moves" with the user. This way if the background is an image, the user always see's the image there. For an example for a fixed background see this website: http://www.brownielocks.com/fixedbackground.html

Boss: This background the developers did is terrible, it just keeps repeating after you scroll down far enough.

Me: Yes it should either be fixed in place or fade out into a solid color.

Boss: What do you mean fixed?
(My boss has been in web design for over 20 years)

Me: Like, the background moves with the user.

Boss: I don't understand.

I take two pieces of paper and show her an example.

Boss: I don't understand. Go talk to the developer and see what he says, this is too technical.

Me: ....There's nothing technical, we have two options fixed, or fading.

Boss: Ugh fine.
My boss call's in the programmer.
Explain to me this whole fixed and fading thing I don't understand this.
The developer pretty much repeats what I said.
I don't understand. JUST MAKE IT WORK!