Suggestions

[Kosheh]

I'm not sure if you're being sarcastic here or being legit serious, lol

The shadow is in and it does help a bit but it may need a little tweaking.

Oh, that's because I found out this morning that I'm retarded.

That's only a drop shadow. For it to work all-over, you'll want to make it in each corner to give it the intended effect:

Code:

thead {
   -webkit-text-stroke: 1px #457A2F; // for browsers that use webkit
text-shadow: // for those that don't. the downer with this technique i just dreamed up is that it'll only work for 1px stroke. Any more and you'll see gaps
    -1px -1px 0 #457A2F,
    1px -1px 0 #457A2F,
    -1px 1px 0 #457A2F,
    1px 1px 0 #457A2F;
}

EDIT: Just tried it and it definitely helps, as opposed to the single text-shadow. Oops, I wish I suggested this before ):