【a】
<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
a:target {
transition: background-color 1s ease-in;
-webkit-transition: background-color 1s ease-in;
-moz-transition: background-color 1s ease-in;
background-color: yellow;
}
</style>
</head>
<body>
<a href="#" id="see">See</a>
<a href="#" id="works">works</a>
<a href="#" id="well">well</a>
</body>
</html>
