Navigation bar looks weird in IE 8 and below

Hello,

my main navigation bar looks weird in Internet Explorer 8 and below. Can anybody tell me what I am missing here?

Thanks for any help.

nav a { color: rgba(255, 255, 255, .9);

Would be why. The rgba property is new, older browsers like IE8 and below have no support for it.

Thanks a lot, that was easy to fix! Will keep that in mind for next timeā€¦