#mobile-menu{position: fixed;left: 0;right: 0;top: 82px;background: #022E5F;transition: all 0.3s;height: 0;overflow: hidden;z-index: 1;}
#mobile-menu.mobile-menu-open {height: calc(100vh - 82px);}
#mobile-menu > a {
  border-bottom: 1px solid #FFF;
  display: block;
}
@media only screen and (max-width: 767px) {
  #main {margin-top: 80px;max-height: calc(100vh - 80px);}
}