Custom CSS/JavaScript lets you change colors, fonts, layouts and other visual elements to create a unique look and feel that matches your brand style.
Adding custom CSS/JavaScript
Go to the Admin panel.
Select Themes.
Click on the triple dot menu.
Click on Clone on the theme you want to customize.
Select the three-dot menu at the bottom right of the cloned theme, then choose Edit.
Go to Advanced tab and add custom CSS/JavaScript
Click Save Changes