scrollbar,
[scrollbar],
[data-scrollbar] {
    display: block;
    position: relative;
    overflow: scroll;
}

    scrollbar .scroll-content,
    [scrollbar] .scroll-content,
    [data-scrollbar] .scroll-content {
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
        will-change: transform;
    }

    scrollbar.scrolling .scroll-content,
    [scrollbar].scrolling .scroll-content,
    [data-scrollbar].scrolling .scroll-content {
        pointer-events: none;
    }

        scrollbar.scrolling .scroll-content .scroll-content,
        [scrollbar].scrolling .scroll-content .scroll-content,
        [data-scrollbar].scrolling .scroll-content .scroll-content {
            pointer-events: auto;
        }

    scrollbar .scrollbar-track,
    [scrollbar] .scrollbar-track,
    [data-scrollbar] .scrollbar-track {
        position: absolute;
        opacity: 0;
        z-index: 1;
        -webkit-transition: opacity 0.5s 1s ease-out, background 0.5s ease-out;
        transition: opacity 0.5s 1s ease-out, background 0.5s ease-out;
        background: none;
    }

        scrollbar .scrollbar-track.show,
        [scrollbar] .scrollbar-track.show,
        [data-scrollbar] .scrollbar-track.show,
        scrollbar .scrollbar-track:hover,
        [scrollbar] .scrollbar-track:hover,
        [data-scrollbar] .scrollbar-track:hover {
            opacity: 1;
            -webkit-transition-delay: 0s;
            transition-delay: 0s;
        }

        scrollbar .scrollbar-track:hover,
        [scrollbar] .scrollbar-track:hover,
        [data-scrollbar] .scrollbar-track:hover {
            background: rgba(222,222,222,0.75);
        }

    scrollbar .scrollbar-track-x,
    [scrollbar] .scrollbar-track-x,
    [data-scrollbar] .scrollbar-track-x {
        bottom: 0;
        left: 0;
        width: 100%;
        height: 8px;
    }

    scrollbar .scrollbar-track-y,
    [scrollbar] .scrollbar-track-y,
    [data-scrollbar] .scrollbar-track-y {
        top: 0;
        right: 0;
        width: 8px;
        height: 100%;
    }

    scrollbar .scrollbar-thumb,
    [scrollbar] .scrollbar-thumb,
    [data-scrollbar] .scrollbar-thumb {
        position: absolute;
        top: 0;
        left: 0;
        width: 8px;
        height: 8px;
        background: rgba(0,0,0,0.5);
        border-radius: 4px;
    }