Thank you @Andreas Møller! I understand and feared that... The reason why I am asking is that I want to import a few components from Shoelace and therefore I need to name the element in the way that the lib supports (e.g. sl-tooltip). So, I always have to create a wrapper around the element and cannot use "sl-tooltip" as the root of my component. Or maybe I am just not getting the concept of web components, I am very new to this