Navbar

<nav class="navbar navbar-expand-sm bg-blue navbar-dark fixed-top auto-hide">
    <a class="navbar-brand" href="javascript:">
        Brand
    </a>
</nav>

<section class="m-root">
    <div class="m-container">
        <label class="sample bg-blue">
            S<br>O<br>M<br>E<br><br>
            I<br>N<br>T<br>E<br>R<br>E<br>S<br>T<br>I<br>N<br>G<br><br>
            S<br>T<br>U<br>F<br>F
        </label>
    </div>
</section>

<footer class="bg-dark text-white">
    Footer
</footer>