Sub-Submenu not appearing on mobile device

问题

After asking this question, I was able to I was able to add sub-submenu support to my site. However, on mobile, the menus just appear as blank lines.

回答1:

Replace:

#menu .menus li > ul.menus {
  transform: translateX(100%) scale(1.0);
  top: 0;
}

with

@media only screen and (min-width: 981px) {
  #menu .menus li > ul.menus {
    transform: translateX(100%) scale(1.0);
    top: 0;
  }
}

If worst comes to worst, you could not replace anything and just add this code:

@media only screen and (max-width: 980px) {
  #menu .menus li > ul.menus {
    transform: translateX(100%) scale(1.0) !important;
  }
}

来源：https://stackoverflow.com/questions/43621030/sub-submenu-not-appearing-on-mobile-device