.right-nav {
  position: fixed;
  width: 80px;
  top: 50%;
  transform: translateY(-50%);
  right: 20px;
  background-color: #ffffff;
  box-shadow: 0px 5px 18px 2px rgba(0, 0, 0, 0.1);
  padding: 15px 0;
}
.right-nav-item {
  color: #333333;
  text-align: center;
  padding: 15px 0;
  cursor: pointer;
}
.right-nav-item i {
  font-size: 22px;
  margin-bottom: 5px;
}