Grid Template HTML

<html lang="pt-br">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1" />

    <link
      href="https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,400;0,700;1,400;1,700&display=swap"
      rel="stylesheet"
    />
    <link href="styles.css" type="text/css" rel="stylesheet" />

    <title>Flex Box</title>
  </head>

  <body>
    <header class="menu">
      <div class="container">
        <h1>Logo</h1>
      </div>
    </header>

    <section class="container grid-template">
      <div class="box blue"></div>
      <div class="box yellow"></div>
      <div class="box green"></div>
      <div class="box purple"></div>
      <div class="box red"></div>
      <div class="box orange"></div>
    </section>
  </body>
</html>