<!DOCTYPE html>
<html>
<head>
<script src="/lib/jquery-1.12.2.min.js"></script>
<script>
$(document).ready(function(){
$("p:visible").css("background-color", "yellow");
});
</script>
</head>
<body>
<h1>This is a heading</h1>
<p>This is a pargraph.</p>
<p>This is another paragraph.</p>
<p style="display:none">This is a hidden paragraph.</p>
</body>
</html>