body.overflow-hidden {
  overflow: hidden;
}

#side-menu {
  display: none;
  position: fixed;
  min-width: 400px;
  top: 0;
  right: -400px;
  height: 100%;
  overflow-y: auto;
  z-index: 500;
  background: #fff;
  background-color: #222222;
  padding: 20px 30px;
  color: #333;
  transition: 0.4s;
  z-index: 999999;
}

@media (max-width: 575px) {
  #side-menu {
    min-width: 300px;
    right: -300px;
  }
}

body.side-menu-visible #side-menu {
  transform: translateX(-400px);
}

@media (max-width: 575px) {
  body.side-menu-visible #side-menu {
    transform: translateX(-300px);
  }
}

#side-menu .contents {
  margin-top: 15px;
}

#side-menu .nav-link {
  color: #333;
  font-size: 25px;
  font-weight: 600;
  padding: 12px 0;
}

#side-menu .nav-link:hover {
  opacity: .8;
}

#side-menu .close {
  font-size: 40px;
  font-weight: 200;
  color: #fffb5f;
  text-shadow: none;
}

.side-menu-overlay {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,.4);
  z-index: 100;
  display: none;
}