Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $("button").click(function(){
        $("p").offsetParent().css("background-color", "red");
    });
});
</script>
</head>
<body>

<button>Set background-color</button>

<div style="border:1px solid black;width:70%;position:absolute;left:10px;top:50px">
<div style="border:1px solid black;margin:50px;background-color:yellow">

<p>Click button to set the background color of the first positioned parent element of this paragraph.</p>

</div></div>

</body>
</html>