W3Schools Tryit Editor

<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/5/w3.css">
<body>

<div class="w3-container">
  <h2>Dynamic Progress Bar with Labels</h2>
  <p>Label outside of the progress bar:</p>

<p id="myP">Added <span id="demo">0</span> of 10 photos</p>

<button class="w3-button w3-light-grey" onclick="move();this.disabled='true'">Upload Photos</button> 
</div>

</body>
</html>

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<!DOCTYPE html><html><title>W3.CSS</title><meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="https://www.w3schools.com/w3css/5/w3.css"><body>​<div class="w3-container">  <h2>Dynamic Progress Bar with Labels</h2>  <p>Label outside of the progress bar:</p>​  <div class="w3-light-grey">    <div id="myBar" class="w3-container w3-green" style="height:24px;width:0%">    </div>  </div>​  <p id="myP">Added <span id="demo">0</span> of 10 photos</p>​  <button class="w3-button w3-light-grey" onclick="move();this.disabled='true'">Upload Photos</button> </div>​<script>function move() {  var elem = document.getElementById("myBar");     var width = 0;  var id = setInterval(frame, 50);  function frame() {    if (width >= 100) {      clearInterval(id);      document.getElementById("myP").className = "w3-text-green w3-animate-opacity";      document.getElementById("myP").innerHTML = "Successfully uploaded 10 photos!";    } else {      width++;       elem.style.width = width + '%';       var num = width * 1 / 10;      num = num.toFixed(0)      document.getElementById("demo").innerHTML = num;    }  }}</script>​</body>