Web developers traditionally use lorem ipsum text as placeholder text. It's called lorem ipsum text because those are the first two words of a famous passage by Cicero of Ancient Rome.

lorem ipsum text has been used as placeholder text by typesetters since the 16th century, and this tradition continues on the web.

<h1>Hello World</h1>

<h2>CatPhotoApp</h2>

<p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>