<!DOCTYPE html>
<html>
<head>
<style>
a:link { color: blue; }
a:visited { color: red; }
a;hover { color: green; }
</style>
</head>
<body>
<a href="https://www.google.co.kr/">google</a>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<style>
a:link { color: blue; }
a:visited { color: red; }
a;hover { color: green; }
</style>
</head>
<body>
<a href="https://www.google.co.kr/">google</a>
</body>
</html>
