.hamburger {
    font-size: 28px;
    cursor: pointer;
    padding: 15px;
    
  }
  
  .menu {
    height: 100%;
    width: 0;
    position: fixed;
    top: 0;
    left: 0;
    background-color: #333;
    overflow-x: hidden;
    transition: 0.3s;
    padding-top: 60px;
  }
  
  .menu a {
    padding: 10px 20px;
    color: #fff;
    text-decoration: none;
    display: block;
  }

  .close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
    color: #fff;
  }

  .qrcode {      
    /* position: fixed; */
    top: 15px;
    right: 15px;
    /* font-size: 28px; */
    color: black;
  }