Hamburger

<input type="checkbox" id="brg-tr" class="brg-tr a11y--h">

<label for="brg-tr" class="brg-b" type="button" tabindex="0">
    <div class="brg">
        <span class="brg-c">
            <span class="brg-c-i"></span>
        </span>
        <span class="brg-t"><span class="a11y--h">Toggle </span>Menu</span>
    </div>
</label>