Default fonts are specified in the design settings of your longread but you can also format texts while writing and editing the content item.
Highlight the text you want to format, and you will see a toolbar above the selected block. It enables the following actions you may perform over the highlighted portion of text:
|Making text bold.|
|Making text italic.|
|Inserting a link to the highlighted block of text.|
|Using text as a level one heading.|
|Using text as a level two heading.|
Organizing text into a bullet list.
|Organizing text into a numbered list.|