15.LINKS : Text colour is not changing



I have no error messages and the lesson has been marked as correct, however I don't think it is correct; the colour of the link's text is not changed before or after the links are followed. The Hover function does work with the text colour changing. Please can any one help explain what is wrong and why the text colour isn't changing?

My code. 
HTML code:
	<p><a href="https://www.facebook.com">Home</a></p>
	<p><a href="https://www.facebook.com">Naomi</a></p>
	<p><a href="https://www.facebook.com">Anthony</a></p>

CSS code:
a:link {
    text-decoration: none;
    color: #008B45;  

a:visited: {
    color:  red

a:hover {
    color: #00FF00


a:visited: {
color: red

remove " : " after visited



uhm.. visited uses your browser history, i guess you have visited facebook, the links are all red?