•<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="lib/w3.css">
<style>
h1 {font-size: 64px;}h2 {font-size: 48px;}h3 {font-size: 36px;}h4 {font-size: 24px;}h5 {font-size: 20px;}h6 {font-size: 18px;}</style>
<body>
<div class="w3-container">
<p>How to override the W3.CSS standards.</p>
<h1>Heading 1</h1>
<h2>Heading 2</h2>
<h3>Heading 3</h3>
<h4>Heading 4</h4>
<h5>Heading 5</h5>
<h6>Heading 6</h6>
</div>
</body>
</html>
