How do I edit the Default Text Styles of my website

1. Click on main menu item Customise
2. Then click on Site Design icon
3. And then on Styles tab
4. Here you can set default text styles for the whole website
5. You can edit the Size, Colour, Weight, Style and decoration of the Default Font, all the Heading styles, Bullet Points, Links, Visited Links, Active Links and Hover links colours and Hover Links
6. Save Changes