.hamburger-menu {
    display: inline-block;
    cursor: pointer;
    user-select: none;
  }
  
  .hamburger-menu .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: white;
    transition: all 0.3s ease-in-out;
  }
  
  .hamburger-menu.is-active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger-menu.is-active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger-menu.is-active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }