* {
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
    /* for touch screen */
    touch-action: none;
}

body {
    overflow: hidden;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    background: #f5f5dc;
    -webkit-perspective: 1000px;
    perspective: 1000px;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

#drag-container,
#spin-container {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    margin: auto;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    -webkit-transform: rotateX(-10deg);
    transform: rotateX(-10deg);
}

#drag-container span, img,
#drag-container video {
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    line-height: 200px;
    font-size: 50px;
    text-align: center;
    -webkit-box-shadow: 0 0 8px #fff;
    box-shadow: 0 0 8px #fff;
    -webkit-box-reflect: below 10px linear-gradient(transparent, transparent, #0005);
}

#drag-container img:hover,
#drag-container video:hover {
    -webkit-box-shadow: 0 0 15px #fffd;
    box-shadow: 0 0 15px #fffd;
    -webkit-box-reflect: below 10px linear-gradient(transparent, transparent, #0007);
}

#drag-container p {
    font-family: Serif;
    position: absolute;
    top: 100%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%) rotateX(90deg);
    transform: translate(-50%, -50%) rotateX(90deg);
    color: #fff;
}

#ground {
    width: 900px;
    height: 900px;
    position: absolute;
    top: 100%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%) rotateX(90deg);
    transform: translate(-50%, -50%) rotateX(90deg);
    background: -webkit-radial-gradient(center center, farthest-side, #9993, transparent);
}

#music-container {
    position: absolute;
    top: 0;
    left: 0;
}

@-webkit-keyframes spin {
    from {
        -webkit-transform: rotateY(0deg);
        transform: rotateY(0deg);
    }

    to {
        -webkit-transform: rotateY(360deg);
        transform: rotateY(360deg);
    }
}

@keyframes spin {
    from {
        -webkit-transform: rotateY(0deg);
        transform: rotateY(0deg);
    }

    to {
        -webkit-transform: rotateY(360deg);
        transform: rotateY(360deg);
    }
}

@-webkit-keyframes spinRevert {
    from {
        -webkit-transform: rotateY(360deg);
        transform: rotateY(360deg);
    }

    to {
        -webkit-transform: rotateY(0deg);
        transform: rotateY(0deg);
    }
}

@keyframes spinRevert {
    from {
        -webkit-transform: rotateY(360deg);
        transform: rotateY(360deg);
    }

    to {
        -webkit-transform: rotateY(0deg);
        transform: rotateY(0deg);
    }
}