Tryit Editor v2.3

Edit This Code:
<!DOCTYPE html> <html> <body onresize="myFunction()"> <p>Try to resize the browser window.</p> <script> function myFunction() { alert("You have changed the size of the browser window!"); } </script> </body> <!-- Mirrored from www.w3schools.com/tags/tryit.asp?filename=tryhtml5_ev_onresize by HTTrack Website Copier/3.x [XR&CO'2014], Fri, 23 Jan 2015 08:09:08 GMT --> </html>
Result:
Try it Yourself - © w3schools.com