@media screen and (max-width: 989px) {
  #wt-drawer-nav,
  #wt-drawer-nav .wt-drawer__body,
  #wt-drawer-nav .wt-drawer__content,
  #wt-drawer-nav nav,
  #wt-drawer-nav ul {
    background: #000000 !important;
    background-color: #000000 !important;
  }
}