Reusable custom HTML elements Day 131 of 149 👉 Full deep-dive with code examples The LEGO Brick Analogy LEGO bricks are reusable building blocks: Each brick works independently Combine them to build anything Same brick works in any LEGO set Web Components are LEGO bricks for websites! Create a component once, use it anywhere. The Problem They Solve Before Web Components: Copying HTML, CSS, JS between projects Styles from one component affecting others Different frameworks couldn't share components Hard to encapsulate functionality What Web Components Give You Custom Elements: Define your own HTML tags <user-card> instead of <div class="user-card"> Shadow DOM: Component has its own isolated styles No CSS leaking in or out HTML Templates: Reusable HTML structures Only rendered when needed A Simple Example Create a custom element: <my-greeting name= "Alice" ></my-greeting> Enter fullscreen mode Exit fullscreen mode Renders as: Hello, Alice! Welcome to our site.…