<header>
<div class="container">
</div>
</header>
<main>
<div class="container">
</div>
</main>
<footer>
<div class="container">
</div>
</footer>
<header class="container">
</header>
<main class="container">
</main>
<footer class="container">
</footer>
<div class="container">
</div>
<div class="container">
</div>
<div class="container">
</div>