This is the exact use-case I found for them, and it’s terrific. I define any tag, e.g. <my-modal>, put normal HTML within it as if it were just a div, and then

This is the exact use-case I found for them, and it’s terrific. I define any tag, e.g. <my-modal>, put normal HTML within it as if it were just a div, and then I can define the callbacks (like adding/cleaning up listeners) and custom attributes in a tiny bit of JS.