The Format drop-down menu contains some classic
heading and formatting tags that can be applied to your text:
If you want to apply a specific heading tag, first select the text or
place the cursor inside it. Then choose a heading tag from the Format
drop-down menu in the toolbar. The heading will be set for the entire
paragraph that contains the current selection. If that paragraph already
has a heading tag applied, it will be replaced by the newly selected one.