.wsmenu>.wsmenu-list>li>ul.sub-menu {
  opacity: 0;
  visibility: hidden;
  -webkit-transform: perspective(400) rotate3d(1, 0, 0, -90deg);
  -webkit-transform-origin: 50% 0;
  -moz-transition: 300ms;
  -o-transition: 300ms;
  transition: 300ms;
}

.wsmenu>.wsmenu-list>li:hover>ul.sub-menu {
  opacity: 1;
  visibility: visible;
  max-height: 1000px;
  -webkit-transform: perspective(400) rotate3d(0, 0, 0, 0);
}

.wsmenu>.wsmenu-list>li>ul.sub-menu>li>ul.sub-menu {
  opacity: 0;
  visibility: hidden;
  transform-style: preserve-3d;
  -o-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transform: rotateX(-75deg);
  -o-transform: rotateX(-75deg);
  -moz-transform: rotateX(-75deg);
  -webkit-transform: rotateX(-75deg);
}

.wsmenu>.wsmenu-list>li>ul.sub-menu>li:hover>ul.sub-menu {
  opacity: 1;
  visibility: visible;
  -o-transform-origin: 0% 0%;
  -ms-transform-origin: 0% 0%;
  -moz-transform-origin: 0% 0%;
  -webkit-transform-origin: 0% 0%;
  -o-transition: -o-transform 0.4s, opacity 0.4s;
  -ms-transition: -ms-transform 0.4s, opacity 0.4s;
  -moz-transition: -moz-transform 0.4s, opacity 0.4s;
  -webkit-transition: -webkit-transform 0.4s, opacity 0.4s;
  transform: rotateX(0deg);
  -o-transform: rotateX(0deg);
  -moz-transform: rotateX(0deg);
  -webkit-transform: rotateX(0deg);
}

.wsmenu>.wsmenu-list>li>ul.sub-menu>li>ul.sub-menu>li>ul.sub-menu {
  opacity: 0;
  visibility: hidden;
  -o-transform-origin: 0% 0%;
  -ms-transform-origin: 0% 0%;
  -moz-transform-origin: 0% 0%;
  -webkit-transform-origin: 0% 0%;
  -o-transition: -o-transform 0.4s, opacity 0.4s;
  -ms-transition: -ms-transform 0.4s, opacity 0.4s;
  -moz-transition: -moz-transform 0.4s, opacity 0.4s;
  -webkit-transition: -webkit-transform 0.4s, opacity 0.4s;
  transform-style: preserve-3d;
  -o-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transform: rotateX(-75deg);
  -o-transform: rotateX(-75deg);
  -moz-transform: rotateX(-75deg);
  -webkit-transform: rotateX(-75deg);
}

.wsmenu>.wsmenu-list>li>ul.sub-menu>li>ul.sub-menu>li:hover>ul.sub-menu {
  opacity: 1;
  visibility: visible;
  transform: rotateX(0deg);
  -o-transform: rotateX(0deg);
  -moz-transform: rotateX(0deg);
  -webkit-transform: rotateX(0deg);
}

.wsmenu>.wsmenu-list>li>.wsmegamenu {
  opacity: 0;
  visibility: hidden;
  -webkit-transform: perspective(400) rotate3d(1, 0, 0, -90deg);
  -webkit-transform-origin: 50% 0;
  -moz-transition: 300ms;
  -o-transition: 300ms;
  transition: 300ms;
}

.wsmenu>.wsmenu-list>li:hover>.wsmegamenu {
  opacity: 1;
  visibility: visible;
  max-height: 1000px;
  -webkit-transform: perspective(400) rotate3d(0, 0, 0, 0);
}