<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>My Web Component</title>
        <script src="./hello-world.js" type="module"></script>
    </head>
    <body>
        <hello-world></hello-world>
        <hello-world msg="BBB"></hello-world>
    </body>
</html>