.menu-box {
  position: fixed;
  width: 100%;
  padding-top: 74px;
  background: #f5f5f5;
  z-index: 10;
}

.menu-box.cu-customization {
  padding-top: 0em;
  margin-top: -5em;
}

#submenu {
  display: flex;
  flex-wrap: wrap;
}

#submenu li {
  flex: 1;
}

#submenu li a {
  display: block;
  padding: .6em;
  color: #111;
  text-align: center;
  text-decoration: none;
  background: #f5f5f5;
}

#submenu li.reservation_nav a {
  background: #112260;
  color: #fff;
}

#submenu li a:hover {
  background: #444;
  color: #fff;
}

#toggle {
  display: none;
}

@media only screen and (max-width: 959px) {
  .menu-box {
    padding-top: 60px;
  }

  #submenu li {
    flex: 0 1 auto;
    width: calc(100% / 3);
  }

  #submenu li a {
    padding: .6em .4em;
    font-size: .9em;
  }
}

@media screen and (max-width: 896px) {
  .menu-box.cu-customization {
    margin-top: -10em;
  }
}

@media only screen and (max-width: 480px) {

  .menu-box.cu-customization {
    margin-top: -15em;
  }

  #toggle {
    display: block;
    position: relative;
    width: 100%;
    background: #222;
  }

  #toggle a {
    display: block;
    position: relative;
    padding: 12px 0 10px;
    border-bottom: 1px solid #444;
    color: #fff;
    text-align: center;
    text-decoration: none;
  }

  #toggle:before {
    display: block;
    content: "";
    position: absolute;
    top: 50%;
    left: 10px;
    width: 20px;
    height: 20px;
    margin-top: -10px;
    background: #fff;
  }

  #toggle a:before, #toggle a:after {
    display: block;
    content: "";
    position: absolute;
    top: 50%;
    left: 10px;
    width: 20px;
    height: 4px;
    background: #222;
  }

  #toggle a:before {
    margin-top: -6px;
  }

  #toggle a:after {
    margin-top: 2px;
  }
}