HTMLElement<\/code>, which provides us with all the functionality necessary to create and manipulate our custom elements.<\/p>\n\nclass MyButton extends HTMLElement { constructor() { super(); \/\/ Component initialization logic } connectedCallback() { \/\/ Rendering logic or interaction with the DOM } \/\/ Other methods and properties of the component }\n<\/pre>\nOnce we have defined our class, we must register it as a custom element using the method customElements.define()<\/code>. This method takes two arguments: the name of the custom label we want to create and the class we defined previously.<\/p>\n\ncustomElements.define('my-button', MyButton);\n<\/pre>\nNow that we have defined and registered our custom element component, we can use it anywhere in our project using the tag <mi-boton><\/code>. We can provide attributes and listen to events on our custom components like we would with any other HTML element.<\/p>\n