What aspects of the design can I cusomise?

You are able to customise the appearance of the placement, e.g. the font, color, and border.

There are two ways to style the On-site messaging placements:

Using CSS on your website or using Klarna’s Merchant Portal. Using CSS gives you more flexibility, but you must follow Klarna’s recommendations and not hide any part of the message. If you are not familiar with CSS or do not have access to your website’s source code, you can use the Merchant Portal.