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<!DOCTYPE html> <html> <body> Downloading progress: <progress id="myProgress" value="22" max="100"> </progress> <p>Click the button to return the value of the max attribute of the progress bar.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myProgress").max; document.getElementById("demo").innerHTML = x; } </script> </body> </html>