Hover Link Color Change Doesn't Work

[Justagreenhorn]

I have been trying to get my link hover text color to work, but so far without success.

<style type="text/css">
A:link {text-decoration: none}
A:visited {text-decoration: none}
A:active {text-decoration: none}
A:hover {text-decoration: underline; color: red;}
</style>

I've tried putting the color in #format, but result is still the same.
Only white text with white underline is shown when I hover over.

Where have I gone wrong?

Thanks in advance.