<html>
<body>
Points: <input type="range" id="myRange" value="20">
<p>Click the button to display the default of the slider control.</p>
<button onclick="myFunction()">Try it</button>
<p><strong>Note:</strong> input elements with type="range" are not supported in IE 9 and earlier versions.</p>
<p id="demo"></p>
<script>
function myFunction() {
var x = document.getElementById("myRange").defaultValue;
document.getElementById("demo").innerHTML = x;
}
</script>
</body>
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</html>