Hello,

When you choose the custom, you should insert the existing class and configure styles for them, for example:

1. Hove the text and right-click https://gyazo.com/884ffd90e2bd8f2d65fce0efdb987584

2. Take the class: http://prntscr.com/l43l9m

3. Insert it in the custom field, which appears when you choose “Custom Selector” http://prntscr.com/l43m1k

4. Configure the style. Save.

Best Regards