This is a standard paragraph. You can format text like a Microsoft Word office. This section contain Paragraph Settings, container (width size), font size, padding between sections above and bellow, also you can use different font weight (regular or condensed). Usually, if you want to use font bigger then 20px, use font style condensed. For long text, recommended font size iz 20px, if you want section with, for example 180 characters, use 22 or bigger. Of course, bold, underline, italic or linked text is here.
For most biggest title, you should use font size 30px. h2 tag is recommended for subtitles. Default container is 1440px, but the most used in the website is container-s).