body.overflow-hidden {
  overflow: hidden;
}

#side-menu {
  display: none;
  position: fixed;
  min-width: 300px;
  top: 0;
  right: -300px;
  height: 100%;
  overflow-y: auto;
  z-index: 1040;
  background: #fff;
  padding: 20px 30px;
  color: #333;
  transition: 0.4s;
}

body.side-menu-visible #side-menu {
  transform: translateX(-300px);
}

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

#side-menu .nav-link {
  color: #555;
  font-size: 16px;
  font-weight: 400;
  padding: 12px 0;
}

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

#side-menu .close {
  font-size: 36px;
  font-weight: 400;
}

.side-menu-overlay {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,.4);
  z-index: 1035;
  display: none;
}