* {
        box-sizing: border-box;
        }

        .row > .column {
        padding: 0 8px;
        }

        .row:after {
        content: "";
        display: table;
        clear: both;
        }

        .column {
        float: left;
        width: 25%;
        border:3px solid white;
        }

        /* The Modal (background) */
        .modal {
        display: none;
        position: fixed;
        z-index: 1;
        padding-top: 100px;
        left: 0;
        top: 0;
        width: 100%; /* bisher "100%" */
        height: 100%;
        overflow: auto;
        /*background-color: grey; /* bisher "black" */
        background:rgba(40,40,40, 0.9);
        }

        /* Modal Content */
        .modal-content {
        position: relative;
        background-color: #fefefe;
        margin: auto;
        padding: 0;
        width: 100%; /* bisher 90% */
        max-width: 800px; /* bisher 1200 */
        }

        /* The Close Button */
        .close {
        color: white;
        position: absolute;
        top: 10px;
        right: 25px;
        font-size: 35px;
        font-weight: bold;
        }

        .close:hover,
        .close:focus {
        color: #999;
        text-decoration: none;
        cursor: pointer;
        }

        .mySlides {
        display: none;
        }

        .cursor {
        cursor: pointer;
        }

        /* Next & previous buttons */
        .prev,
        .next {
        cursor: pointer;
        position: absolute;
        top: 50%;
        width: auto;
        padding: 16px;
        margin-top: -50px;
        color: #045FB4; /* bisher "white" */
        font-weight: bold;
        font-size: 20px;
        transition: 0.6s ease;
        border-radius: 0 3px 3px 0;
        user-select: none;
        -webkit-user-select: none;
        }

        /* Position the "next button" to the right */
        .next {
        right: 0;
        border-radius: 3px 0 0 3px;
        }

        /* Position the "preview button" to the left */
        .prev {
        left: 0;
        border-radius: 3px 0 0 3px;
        }

        /* On hover, add a black background color with a little bit see-through */
        .prev:hover,
        .next:hover {
        background-color: rgba(0, 0, 0, 0.8);
        }

        /* Number text (1/3 etc) */
        .numbertext {
        color: #f2f2f2;
        font-size: 12px;
        padding: 8px 12px;
        position: absolute;
        top: 0;
        }

        img {
        margin-bottom: -5px;
        }

        .caption-container {
        text-align: center;
        background-color: black;
        padding: 2px 16px;
        color: white;
        }

        .demo {
        opacity: 0.6;
        }

        .active,
        .demo:hover {
        opacity: 1;
        }

        img.hover-shadow {
        transition: 0.3s;
        }

        .hover-shadow:hover {
        box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
        }