<!DOCTYPE html>
<html lang="en-US">
<body>
<h2>Heading 2</h2>
<p>Paragraph</p>
<h3>Heading 3</h3>
<p>Paragraph</p>
<script>
//Select all h2 and p tags.
var x = document.querySelectorAll("h2, p");
for(var i = 0; i < x.length; i++)
x[i].style.color = "green";
</script> </body>
</html>