<h1> is the biggest heading, <h2> is the second biggest heading, and so forth. We can go until <h6>, the smallest heading.

<html><body><h1>My favorite things</h1><h2>Raindrops on roses</h2><h3>Whiskers on kittens</h3>Bright copper kettles</body></html>
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Make sure to assemble <h2> in your code.