I thought I knew CSS, then I found the ::selection css selector. I picked up on it because I like to click on everything, and click on everything is what I did
Head over to http://moofx.mad4milk.net/ and highlight text on the page to see the effect.
Or just highlight some text on this page, and of course check out quirksmode.org for the explanation of the ::-moz-selection property.
::selection is part of the CSS level 3 specification
[css]
::-moz-selection{
background:#d4f699;
color:#7aa62f;
}
::selection{
background:#d4f699;
color:#7aa62f;
}
[/css]
Oh, and good luck with that in IE