How to change styles of the product layout for the abandoned cart email template?
The styles of the email template can be modified via the files. Depending on the layout mode (list/table), different files should be modified. Modify this file for the list mode:
Amasty/Acart/view/frontend/templates/email/list.phtml
And this file is for the table mode:
Amasty/Acart/view/frontend/templates/email/table.phtml
To set the layout mode, please navigate to Marketing → Email Templates, open the Abandoned Cart Email template, and find the layout in the Template Content field.