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<!DOCTYPE html> <html> <head> <script src="/lib/jquery-1.12.2.min.js"></script> <script> $(document).ready(function(){ $("div").on("click", "button", function(event){ $(event.delegateTarget).css("background-color", "pink"); }); }); </script> </head> <body> <div style="background-color:yellow"> <p>Click the button to change the background color of this div.</p> <button>Click me!</button> </div> <div style="background-color:yellow"> <p>Click the button to change the background color of this div.</p> <button>Click me!</button> </div> </body> </html>