.thumbnail {
    border-radius: 5px;
    cursor: pointer;
    transition: 0.3s;
    display: block;
    margin-left: auto;
    margin-right: auto
    }

    .thumbnail:hover {opacity: 0.7;}

    /* The Modal (background) */
    .modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    padding-top: 50px; /* Location of the box */
    left: 50;
    top: 50;
    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 (image) */
    .modal-content {
    position: relative;
    background-color: #fefefe;
    margin: auto;
    padding: 0;
    border: 1px solid #888;
    width: 50%;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
    -webkit-animation-name: animatetop;
    -webkit-animation-duration: 0.4s;
    animation-name: animatetop;
    animation-duration: 0.4s
    }

    /* Caption of Modal Image */
    #caption {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;§
    text-align: center;
    color: #ccc;
    padding: 10px 0;
    height: 150px;
    }

    /* Add Animation */
    .modal-content, #caption {
    -webkit-animation-name: zoom;
    -webkit-animation-duration: 0.6s;
    animation-name: zoom;
    animation-duration: 0.6s;
    }

    .out {
    animation-name: zoom-out;
    animation-duration: 0.6s;
    }

    @-webkit-keyframes zoom {
    from {-webkit-transform:scale(1)}
    to {-webkit-transform:scale(2)}
    }

    @keyframes zoom {
    from {transform:scale(0.4)}
    to {transform:scale(1)}
    }

    @keyframes zoom-out {
    from {transform:scale(1)}
    to {transform:scale(0)}
    }

    /* The Close Button */
    .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;
    }

    /* 100% Image Width on Smaller Screens */
    @media only screen and (max-width: 700px){
    .modal-content {
    width: 100%;
    }
}