Open your Google Doc
Select the text you want to make a heading
Click the Styles drop-down in the toolbar
Choose Heading 1, Heading 2, or Heading 3
Use Heading 1 for main sections
Use Heading 2 for subsections
Use Heading 3 for smaller subsections
To change heading formatting, update the text style and apply it to the heading
To add a heading quickly, type the text and apply a heading style before or after typing
