* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}


#galery img {
    opacity: 0.5;
     
}

#galery img:hover {
    opacity: 1.0;
    filter: drop-shadow(5px 5px 10px #000);
    -webkit-animation: heartbeat 1.5s ease-in-out infinite both;
    animation: heartbeat 1.5s ease-in-out infinite both;
}

.upp  {
    background-image: url(/img/slider-1.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}