Tryit Editor v1.8

Source Code:

<!DOCTYPE html>
<html>
<head>
<style>
a:link    {color:green;}
a:visited {color:green;}
a:hover   {color:red;}
a:active  {color:yellow;}
</style>
</head>
<body>

<p>Mouse over and click the link: <a href="http://www.w3schools.com">w3schools.com</a></p>

</body>
</html>

Result:

W3Schools.com - Try it yourself

Edit the code above and click "Submit Code" to see the result.