Script utilizado para que funcione no IE/Firefox: http://verens.com/archives/2006/06/03/multiple-text-shadows/

text-shadow: 1px 1px 1px black - Lorem ipsum dolor sit amet

text-shadow: red 20px -12px 2px - Lorem ipsum dolor sit amet

text-shadow: 2px 2px 2px blue - Lorem ipsum dolor sit amet

text-shadow: -1px -1px #666, 1px 1px #FFF - Lorem ipsum dolor sit amet

text-shadow: 2px 0 4px #600, -2px 0 4px #006 - Lorem ipsum dolor sit amet