<!DOCTYPE html>
<html>
<head>
<script src="/lib/jquery-1.12.2.min.js"></script>
<script>
$(document).ready(function(){
$("p:has(span)").css("border", "solid red");
});
</script>
</head>
<body>
<p><span>This is a span element inside a p element.</span></p>
<p>This is a p element with no span element.</p>
</body>
</html>