/* Style Switcher CSS */
#demo_changer {
  position: fixed;
  top: 150px;
  left: -200px;
  width: 200px;
  background: #222;
  z-index: 99999;
  transition: all 0.3s ease;
  color: #fff;
  padding: 15px;
}
#demo_changer.open {
  left: 0;
}
.demo-icon {
  position: absolute;
  right: -40px;
  top: 0;
  width: 40px;
  height: 40px;
  background: #e74c3c;
  color: #fff;
  text-align: center;
  line-height: 40px;
  cursor: pointer;
}