On the Gallery Master’s Navigation Panel, click on Layout Settings – Custom CSS.
Once you click on “Custom CSS”, you will be redirected to the following page as mentioned below.
Custom CSS : In this field, you would need to provide CSS code manually to add extra styling to the layout of Gallery Master. This CSS style will override the plugins css and provide you the ability to customize the settings for various layouts in Gallery Master.
Once everything is being setup, you would need to click on “Save Changes” button located at the bottom of the page to save the changes.