Hey Robert,

I am really sorry for the delay of this reply as it is a weekend for us here. Ideally, you shouldn't be modifying the css file for the module because when the extension / module get's updated your changes would be lost.

Instead, what you should do is to construct your own css codes for the button and place the codes into your template's css file,

Thank you Mark for the tip. I added your code to the end of my 'custom.css file for my template but it did not change anything.
#fd.eb.mod_easyblogsubscribe {
background-color: #ceaa73 !important;
}
I also tried the following code but it did not work either. It seemed to when I used Firebug on the page so I might just have the code wrong.
#fd .btn-primary {
background-color: #ceaa73 !important;
border-color: #357ebd !important;
color: #fff !important;
}

Sad but true. Actually that is the way I was taught by the people at JoomlaPlates.
Thank you for the tip.

Bob

You are most welcome Robert Cheers!