<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> </head>
<body>
<h1>jQuery :selected Selector</h1>
<select>
<option>Africa</option>
<option selected="selected">Asia</option>
<option>Europe</option>
<option>Oceania</option>
</select>
<script>
$(document).ready(function(){
$(":selected").css("font-size","20px");
});
</script> </body>
</html>