Header

[shamayim]

I'm trying to post a header using the custom CSS and its not showing up. I copied and pasted the code but I'mnot sure if I'm doing it right.
div{
background: #000000 url(http://i903.photobucket.com/albums/ac236/sweetpea34_2010/MySo-CalledLife.jpg) no-repeat top center;
padding-top:5px;
}
div div{
background:none;
padding-top:0;
}