How do I override CSS?

This is for advanced users who enjoy organization as most users will probably override styles via their theme’s style.css. Overriding CSS is easy with Mobile App Bar. Simply create a mobile-app-bar folder in your theme’s directory, and create a global.css and/or ecommerce.css file. Now add styles to the new css files to your desire. Now when you update Mobile App Bar, it won’t overwrite your custom css.