...
On your computer, open a document in Google Docs.
Select the text you want to change.
Click Format.
Select Paragraph styles.
Click a text style:
Normal text,
An important note about paragraph styles: Font-size should be between 12 and 14, line-height (the space between lines of text) should be 1.5. Do not go less than 1.35.
Click a text style:
- Normal text,
Heading 1-6.
Click Apply ‘text style.'
...