Hey, what answers do you need?
Heading elements
You can use the H1 Headline, H2 Headline and H3 Headline elements to insert headlines of different sizes into your document.
The main difference between the three heading elements is the size of the font. While you can choose this freely in the normal HTML view, the font size in responsive mode for mobile devices has a value defined by the system.
The formatting can only be changed for the heading as a whole. It is not possible to format individual parts of a heading differently, as this would jeopardize the consistency of the presentation.
The following styles are available for headings: