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<html><body>Number: <input type="number" id="myNumber"><p>Click the button to increment the value of the number field by 5 (each time you click).</p><button onclick="myFunction()">Try it</button><p><strong>Note:</strong> The stepUp() method is not supported by Internet Explorer.</p><script>function myFunction() { document.getElementById("myNumber").stepUp(5);}</script></body></html>