Please tell me where I can find this file: assets/notifications/styles.css (styles for notifications)
I cannot see it in Themes->Edit code for MyTheme.
I need to add styles into it but cannot find it.
Thanks a lot!
There is no assets/notifications/styles.css in Shopify.
It's not possible even to have a folder inside the assets folder, so I don't know where did you get this path from.
If you are referring to the Settings -> Notifications templates, those styles are written inline since they are email templates. You can modify them only from the admin panel from Settings -> Notifications and update each separate template. ( there is text editor for each separate template there )