.modal {
        display: none; /* Hidden by default */
        position: fixed; /* Stay in place */
        z-index: 1; /* Sit on top */
        padding-top: 100px; /* Location of the box */
        left: 0;
        top: 0;
        width: 100%; /* Full width */
        height: 100%; /* Full height */
        overflow: auto; /* Enable scroll if needed */
        background-color: rgb(0,0,0); /* Fallback color */
        background-color: rgba(0,0,0,0.9); /* Black w/ opacity */
      }
    
      .modal-content {
        margin: auto;
        display: block;
        max-width: 80%;
        max-height: 80%;
      }
    
      .modal-content, #caption { 
        animation-name: zoom;
        animation-duration: 0.6s;
      }
      
      @keyframes zoom {
        from {transform:scale(0)} 
        to {transform:scale(1)}
      }
      
      .close {
        position: absolute;
        top: 15px;
        right: 35px;
        color: #f1f1f1;
        font-size: 40px;
        font-weight: bold;
        transition: 0.3s;
      }
      
      .close:hover,
      .close:focus {
        color: #bbb;
        text-decoration: none;
        cursor: pointer;
      }
      
      @media only screen and (max-width: 800px){
        .modal-content {
          width: 100%;
        }
      }