:first-child targeting all child elements

[unknoffn]

I have a unordered list with id of "navigation" and a few child list-item elements.I am trying to select just the first item with \[code\]:first-child\[/code\] but it is applying the CSS I use with this to all other list items.\[code\]ul#navigation li:first-child{ background:#fff;}\[/code\]So, to reiterate: this is giving every list-item a white background. I just want to select the first element. What is going wrong?