Custom CSS can be easily adding in Acabado Settings.
In your WordPress Dashboard, go to “Acabado Settings” and scroll down. Add your custom CSS in the “Custom CSS” box.
Then click “Update” on the far right to save your changes.
Note: Any theme updates using CSS are to be done at the discretion of the individual user. Income School is not responsible for troubleshooting or assisting in any issues created by the use of CSS customizations on your theme.