html, body
{
    margin: 0px;
}


#wrapper {
}
#wrapper img {
    height:100vh;
    position: absolute;
    top: 0px;
    left: -100vh;
     animation: panorama 40s linear infinite both;
    animation-direction: alternate;
}
@keyframes panorama {
    0% {
       transform: translateX(calc(-100vh));
    }
    100% {
        transform: translateX(calc(100vh));
    }
}