Comments And Use Cases

<html>
  <head>
    <!-- This Meta Is For Bla Bla Bla -->
    <meta charset="UTF-8" />
    <title>Book Store</title>
    <!-- This Is For Bla Bla Bla -->
    <meta name="description" content="This Is Our Book Store" />
    <!-- This Is Comment -->
    <meta name="elzero" content="v1.0" />
    <style></style>
    <script></script>
    <link rel="stylesheet" href="" />
  </head>
  <body>
    This Is My Book Store, Welcome
    <!-- 
      Comment Line One 
      Comment Line Two 
      Comment Line Three 
    -->
  </body>
</html>