header {
    position: relative;
    z-index: 1;
}
.expanded {
    position: fixed;
    z-index: 11;
    right: 1.5625rem;
  }
  .expanded path {
    fill: #fafafa;
  }
  #mobile-menu::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, .6)
  }