The Web Component Slot element - HTML - MDN Web Docs

mdn slot The slot> HTML element—part of the Web Components technology suite—is a placeholder inside a web component that you can fill with your own markup, which lets you create separate. Learn about the Element.slot property, including its type, code examples, specifications, and browser compatibility.

mdn slot login, We'll discuss using the template> and slot> elements, the slot attribute, and JavaScript to create a template with an encapsulated Shadow DOM. We'll then re-use.