.overlay {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: rgb(0,0,0);
  background-color: rgba(255,255,255, 1);
  overflow-x: hidden;
  transition: 0.5s;
}

.overlay-content {
  position: relative;
  top: 15%;
  width: 100%;
  text-align: center;
  margin-top: 30px;
}

.overlay a {
  padding: 8px;
  text-decoration: none;
  font-size: 22px;
  color: #999999;
  display: block;
  transition: 0.3s;
}

.overlay a:hover, .overlay a:focus {
  color: #999999;
}

.overlay .closebtn {
  position: absolute;
  top: 20px;
  right: 45px;
  font-size: 60px;
}

ul#menu-movil {
  list-style-type: none;
  padding-left: 0;
}

ul#menu-movil li ul.sub-nav,
ul#menu-movil li ul.sub-sub-nav {
  list-style-type: none;
  padding: 0;
}

ul#menu-movil a.main.active {
  color: #000000;
}

ul#menu-movil li ul.sub-nav > li a {
  color: #999999;
  font-size: 18px;
}

ul#menu-movil li ul.sub-nav a.subsub {
    font-size: 14px;
    text-align: center;
}

ul#menu-movil li ul.sub-sub-nav a.subsub {
    font-size: 14px;
    text-align: center;
    color: #999999;
}
ul#menu-movil li ul.sub-sub-nav a.subsub.active {
  color: #000000; 
}

@media screen and (max-height: 450px) {
  .overlay a {font-size: 20px}
  .overlay .closebtn {
  font-size: 40px;
  top: 15px;
  right: 35px;
  }
}