Originally Posted by gwjr

I believe if you style like this in your css.

a:visited {color:green; background-color:transparent; text-decoration:none}

So if your starting color is green then after it's click it will still be green.

Have a look at W3school w3schools [dot] com/html/html_links.asp
Look for title HTML Links - Colors this explains possible solutions.

Hope this helps good luck