Let's begin with the general settings that affect the frontend so that you will understand things you need to take into consideration when creating the OpenCart theme and module. While installing fresh OpenCart, it uses the default data and settings in the database provided by OpenCart. We describe it based on the default settings.
In OpenCart 18.104.22.168, go the address
http://localhost/packtthemeshop/admin (if you are browsing through localhost), the admin menu will appear in the left column, and it can be extended as required by clicking on the icon in the top-left corner icons near the logo, shown here:
Now, let's start setting images' height and width.