Tryit Editor v1.8

Source Code:
<!DOCTYPE html> <html> <head> <script src="../../ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("p").filter(function(){ return $("span",this).length==2;}).css("background-color","yellow"); }); </script> </head> <body> <div> <p>A p element <span>with one span element.</span></p> <p>A p element <span>with</span> two <span>span elements.</span></p> <p>A p element <span>with one span element.</span></p> <p>A p element <span>with</span> two <span>span elements.</span></p> <p>A p element with no span element.</p> </div> <p>This example returns all p elements that have two span elements. P elements with none, one, or more than two span elements, will not be returned.</p> </body> </html>
Result:
W3Schools.com - Try it yourself