Why is the following code for a level-2 heading incorrect?
<h2="Level 2 Heading"></h2>
<h2="Level 2 Heading"> should be <h2>Level 2 Heading</h2>
<h2="Level 2 Heading">
<h2>Level 2 Heading</h2>
Level 2 Heading should be inside a <span>
Level 2 Heading
<span>
<h2> should be <h3>
<h2>
<h3>
<h2> should be inside a <div>
<div>