intro.css

#main {
    background-image: url('full.png');
    animation: main 1.5s ease 0s 1 normal forwards;
}

@keyframes main {
    0% {
        opacity: 0;
    }
    90% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.floating-panel {
    position: absolute;
    width: 1000px;
    height: 666px;
    top: 0px;
    left: 0px;
    background-repeat: no-repeat;
}

#bottom {
    background-image: url('bottom.png');
    animation: bottom 1.5s ease 0s 1 normal forwards;
    z-index: 0;
}

@keyframes bottom {
    0% {
        background-position-x: -1000px;
    }
    100% {
        background-position-x: 0px;
    }
}


#hotel {
    background-image: url('hotel.png');
    animation: hotel 1.5s ease 0s 1 normal forwards;
    z-index: 2;
    transform: scale(1.01);
    transform-origin: 50% 20%;
}

@keyframes hotel {
    0% {
        background-position-y: -700px;
    }
    100% {
        background-position-y: 0px;
    }
}

#top {
    background-image: url('top.png');
    animation: top 1.5s ease 0s 1 normal forwards;
    z-index: 1;
}

@keyframes top {
    0% {
        background-position-x: 1000px;
    }
    100% {
        background-position-x: 0px;
    }
}