Font sizes

You can use a built-in WYSIWYG editor to change the font size:

This is a Zendesk huge size or Header 2

This is a Zendesk large size or Header 3

This is a Zendesk medium size or Header 4

This is a header 5

This is normal text. Lorem ipsum is a pseudo-Latin text used in web design, typography, layout, and printing in place of English to emphasize design elements over content. It's also called placeholder (or filler) text.