changing h1 a:hover

I have a link in a post that is not colored correctly. Here is the html from the post:

I presume this is the css that needs changing.
h1 a:active, h2 a:active, h1 a:focus, h2 a:focus, h1 a:hover, h2 a:hover { color: #669900; }

I found this in css.php. I understand that if I change the php file I will have to change this every time I update Ata. I thought the place to change this would be ATA->Theme Options->Style POSTS & PAGES ->HEADLINE Box: Links (and) HEADLINE Box: Links: Hover
I place the correct code in these areas, but it does not seem to be effecting the post.
Ideas?