Over the next few lessons, we'll build an HTML5 cat photo web app piece-by-piece.
The <code>h2</code> element you will be adding in this step will add a level two heading to the web page.
This element tells the browser about the structure of your website. <code>h1</code> elements are often used for main headings, while <code>h2</code> elements are generally used for subheadings. There are also <code>h3</code>, <code>h4</code>, <code>h5</code> and <code>h6</code> elements to indicate different levels of subheadings.
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## Instructions
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Add an <code>h2</code> tag that says "CatPhotoApp" to create a second HTML <code>element</code> below your "Hello World" <code>h1</code> element.
testString: assert(code.match(/<\/h2>/g) && code.match(/<\/h2>/g).length === code.match(/<h2>/g).length, 'Make sure your <code>h2</code> element has a closing tag.');