/* dialog overlay */
#mobile-nav-dialog {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  overflow-y: scroll;
  -webkit-overflow-scrolling: touch;
  background: rgba(0, 0, 0, 0.75);
  transition: .2s;
}

/* dialog box */
.mobile-nav-dialog-box {
  flex: 1;
  max-width: 48rem;
  margin: auto;
  background-color: white;
}

/* hidden dialog */
#mobile-nav-dialog[aria-hidden="true"] {
  visibility: hidden;
  opacity: 0;
}