overlap image with css

[beho86]

I want to hide an image behind the background image!

What I am using right now is:

<style type="text/css">
p.one
{
position:fixed;
left:1188px;
top:549px;
}

then at the body:

<p class="one"> <img src="http://www.........gif">

How can I do the same idea but for the background?

Thanks in advance,

[GrafixGuru]

Try with this

Create two style, one is for the "bodyBg"(with background) and "BodyNoBg"(without background). Based on the condition apply these style

or post the detail code, will see and give the solution

[beho86]

but I don't know CSS!
that's why I use templates

[beho86]

Can I add the current code, poster previously?