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Tags are a way for you to describe to the browser how you want the text inside of them to be displayed. for example if you have the text “hello” and you want the browser to render it as a heading, you would use the h1 tag for this.
<h1>hello</h1>
The challenge expects you to display the text “CatPhotoApp” inside of the h1 tag so it can be displayed as a heading.