.tamnapozadina {
    display: none;
    position: fixed;
    background-color: #000000aa;
    color: white;
    text-align: center;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}
.show {
    display: block;
    -webkit-animation: fadeIn 0.5s;
    animation: fadeIn 0.5s;
}
@-webkit-keyframes fadeIn {
    from {opacity: 0;} 
    to {opacity: 1;}
}
@keyframes fadeIn {
    from {opacity: 0;}
    to {opacity: 1;}
}
.izlaz {
    position: fixed;
    width: 50px;
    height: 50px;
    top: 76px;
    right: 10px;
    z-index: 2;
    color: white;
    background-color: #0000007f;
    font-size: 40px;
    border: 2px solid white;
    cursor: pointer;
    transition: 0.1s;
}
.izlaz:hover {
    background-color: #7f7f7f7f;
}
.kasetaslika img {
    position: fixed;
    margin-top: 66px;
    max-width: 100%;
    max-height: 90%;
    top: 46%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
}
.hd {
    position: relative;
    max-width: 1280px;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
}