#footer-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 -1px 5px rgba(0, 0, 0, 0.1);
    z-index: 999;
    display: none;
  }
  
  .footer-nav-list {
    display: flex;
    justify-content: space-around;
    margin: 0;
    padding: 0.5rem 0;
    list-style: none;
  }
  
  .footer-nav-list li a {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.75rem;
    color: #333;
    text-decoration: none;
  }
  
  .footer-nav-list li i {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
  }
  
  @media (max-width: 768px) {
    #footer-nav {
      display: block;
    }
  }