Drawer component

html

<div style="min-height: 200px; position: relative; overflow: hidden">
  <nav id="my-drawer" class="c-drawer" role="navigation" aria-hidden="true">
    <div class="c-drawer__inner">
      <div class="c-drawer__focus-point" tabindex="-1"></div>
      <ul class="c-drawer__menu">
        <li class="c-drawer__item"><a href="#">menu</a></li>
        <li class="c-drawer__item"><a href="#">menu</a></li>
        <li class="c-drawer__item c-drawer__item--has-submenu">
          <a href="#">menu</a>
          <button class="c-drawer__toggle" aria-expanded="false">
            <span class="c-ic-angle-right" aria-hidden="true"></span>
          </button>
          <ul class="c-drawer__submenu" aria-hidden="true">
            <li class="c-drawer__subitem"><a href="#">submenu</a></li>
            <li class="c-drawer__subitem c-drawer__subitem--has-submenu">
              <a href="#">submenu</a>
              <button class="c-drawer__toggle" aria-expanded="false">
                <span class="c-ic-angle-right" aria-hidden="true"></span>
              </button>
              <ul class="c-drawer__submenu" aria-hidden="true">
                <li class="c-drawer__subitem"><a href="#">submenu</a></li>
              </ul>
            </li>
          </ul>
        </li>
        <li class="c-drawer__item c-drawer__item--has-submenu">
          <a href="#">menu</a>
          <button class="c-drawer__toggle" aria-expanded="false">
            <span class="c-ic-angle-right" aria-hidden="true"></span>
          </button>
          <ul class="c-drawer__submenu" aria-hidden="true">
            <li class="c-drawer__subitem"><a href="#">submenu</a></li>
            <li class="c-drawer__subitem"><a href="#">submenu</a></li>
          </ul>
        </li>
      </ul>
    </div>
  </nav>
  <div class="c-drawer-close-zone" aria-controls="my-drawer" aria-hidden="true"></div>

  <nav id="my-drawer-inverse" class="c-drawer c-drawer--inverse" role="navigation">
    <div class="c-drawer__inner">
      <div class="c-drawer__focus-point" tabindex="-1"></div>
      <ul class="c-drawer__menu">
        <li class="c-drawer__item"><a href="#">menu</a></li>
        <li class="c-drawer__item"><a href="#">menu</a></li>
        <li class="c-drawer__item c-drawer__item--has-submenu">
          <a href="#">menu</a>
          <button class="c-drawer__toggle" aria-expanded="false">
            <span class="c-ic-angle-right" aria-hidden="true"></span>
          </button>
          <ul class="c-drawer__submenu" aria-hidden="true">
            <li class="c-drawer__subitem"><a href="#">submenu</a></li>
            <li class="c-drawer__subitem c-drawer__subitem--has-submenu">
              <a href="#">submenu</a>
              <button class="c-drawer__toggle" aria-expanded="false">
                <span class="c-ic-angle-right" aria-hidden="true"></span>
              </button>
              <ul class="c-drawer__submenu" aria-hidden="true">
                <li class="c-drawer__subitem"><a href="#">submenu</a></li>
              </ul>
            </li>
          </ul>
        </li>
        <li class="c-drawer__item c-drawer__item--has-submenu">
          <a href="#">menu</a>
          <button class="c-drawer__toggle" aria-expanded="false">
            <span class="c-ic-angle-right" aria-hidden="true"></span>
          </button>
          <ul class="c-drawer__submenu" aria-hidden="true">
            <li class="c-drawer__subitem"><a href="#">submenu</a></li>
            <li class="c-drawer__subitem"><a href="#">submenu</a></li>
          </ul>
        </li>
      </ul>
    </div>
  </nav>
  <div class="c-drawer-close-zone" aria-controls="my-drawer-inverse" aria-hidden="true"></div>
</div>

<button id="my-drawer-btn" class="c-hamburger-btn" aria-expanded="false" aria-controls="my-drawer">
  <span class="c-hamburger-btn__bars">
    <span class="c-hamburger-btn__bar"></span>
    <span class="c-hamburger-btn__bar"></span>
    <span class="c-hamburger-btn__bar"></span>
  </span>
  <span class="c-hamburger-btn__label">MENU</span>
</button>

<button id="my-drawer-btn-inverse" class="c-hamburger-btn" aria-expanded="false" aria-controls="my-drawer-inverse">
  <span class="c-hamburger-btn__bars">
    <span class="c-hamburger-btn__bar"></span>
    <span class="c-hamburger-btn__bar"></span>
    <span class="c-hamburger-btn__bar"></span>
  </span>
  <span class="c-hamburger-btn__label">MENU (Inverse)</span>
</button>