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<!DOCTYPE html>
<html>
<body>
​
<h2>JavaScript HTML DOM</h2>
​
<p>Hello World!</p>
​
<p>Hello Norway!</p>
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<p>Click the button to change the color of all p elements.</p>
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<button onclick="myFunction()">Try it</button>
​
<script>
function myFunction() {
  var myCollection = document.getElementsByTagName("p");
  var i;
  for (i = 0; i < myCollection.length; i++) {
    myCollection[i].style.color = "red";
  }
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_dom_htmlcollection_loop by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:40:14 GMT -->
</html>
​
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