Many web designers like to use custom & premium fonts.
Once you’ve learnt how to install fonts using best practices, all you need to do is add the fonts into your theme.
To change your sites title and description (tag line):
- Open your child theme’s style.css file
- Scroll down to the header section
- Change the first #title & #description font family
Here you can also change the font size etc.
Note: If you’re not using a child theme, i suggest you create one for your coding edits so any changes you make to your parent theme won’t be overwritten when you update the theme.