Firefox background position SOLVED

Allright, here is a problem:

You want to have background image specifically positioned on your page. CSS works in IE, Safari, Chrome etc. But not in Firefox. An example problem was on mechanics.astri.umk.pl, which I develop. I want to have background image (with well known Lorem Ipsum) positioned just before the logotype. The logotype has almost 400px padding-top.

The solution is here:

.front #branding{

padding: 300px 0 50px 0;

background: #000;

background-image: url(images/mechanics2010-front.png);

background-repeat: no-repeat;

background-position: left 100px; //important: pixels at the end (I think)

}

Voila! Now, the site looks similar in almost every webrowser.