body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background-image: url(sky.jpeg);
    background-size : cover;
    background-repeat: no-repeat;
}

#panorama {
    width: 100%;
    height: 100%;
    background: url("assets/images/sky.jpeg");
    background-size: cover;
    background-position: center;
}