Tryit Editor v1.7

Source Code:

Result:

<!DOCTYPE html>
<html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/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>

Edit the code above and click "Submit Code" to see the result.

W3Schools.com - Try it yourself

Source Code:	Result:
<!DOCTYPE html> <html> <head> <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/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>
Edit the code above and click "Submit Code" to see the result.	W3Schools.com - Try it yourself