.mobile {
  display: block;
  width: 40px;
  height: 20px;
  position: absolute;
  cursor: pointer;
  z-index: 300;
}
@media screen and (min-width: 1080px) {
  .mobile {
    right: 50px;
  }
}
.mobile span {
  display: block;
  width: 100%;
  height: 1px;
  background: #000000;
  position: absolute;
  top: 50%;
}
html.mobile-nav-open .mobile span {
  opacity: 0;
}
.mobile:before,
.mobile:after {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: #000000;
  position: absolute;
}
.mobile:before {
  top: 0;
}
html.mobile-nav-open .mobile:before {
  top: 50%;
  transform: rotate(45deg);
}
.mobile:after {
  bottom: 0;
}
html.mobile-nav-open .mobile:after {
  bottom: 50%;
  transform: rotate(-45deg);
}