.cg-wrap {
    box-sizing: content-box;
    position: relative;
    display: block;
}

cg-container {
    position: absolute;
    width: 100%;
    height: 100%;
    display: block;
    top: 0;
}

cg-board {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    line-height: 0;
    background-size: cover;
    cursor: pointer;
}

    cg-board square {
        position: absolute;
        top: 0;
        left: 0;
        width: 12.5%;
        height: 12.5%;
        pointer-events: none;
    }

        cg-board square.move-dest {
            pointer-events: auto;
        }

        cg-board square.last-move {
            will-change: transform;
        }

.cg-wrap piece {
    position: absolute;
    top: 0;
    left: 0;
    width: 12.5%;
    height: 12.5%;
    background-size: cover;
    z-index: 2;
    will-change: transform;
    pointer-events: none;
}

cg-board piece.dragging {
    cursor: move;
    z-index: 10;
}

piece.anim {
    z-index: 8;
}

piece.fading {
    z-index: 1;
    opacity: 0.5;
}

.cg-wrap piece.ghost {
    opacity: 0.3;
}

.cg-wrap piece svg {
    overflow: hidden;
    position: relative;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
    opacity: 0.6;
}

    .cg-wrap piece svg image {
        opacity: 0.5;
    }

.cg-wrap .cg-shapes, .cg-wrap .cg-custom-svgs {
    overflow: hidden;
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.cg-wrap .cg-shapes {
    opacity: 0.6;
    z-index: 2;
}

.cg-wrap .cg-custom-svgs {
    /* over piece.anim = 8, but under piece.dragging = 10 */
    z-index: 9;
    overflow: visible;
}

    .cg-wrap .cg-custom-svgs svg {
        overflow: visible;
    }

.cg-wrap coords {
    position: absolute;
    display: flex;
    pointer-events: none;
    opacity: 0.8;
    font-family: sans-serif;
    font-size: 9px;
}

    .cg-wrap coords.ranks {
        left: 4px;
        top: -20px;
        flex-flow: column-reverse;
        height: 100%;
        width: 12px;
    }

        .cg-wrap coords.ranks.black {
            flex-flow: column;
        }

    .cg-wrap coords.files {
        bottom: -4px;
        left: 24px;
        flex-flow: row;
        width: 100%;
        height: 16px;
        text-transform: uppercase;
        text-align: center;
    }

        .cg-wrap coords.files.black {
            flex-flow: row-reverse;
        }

    .cg-wrap coords coord {
        flex: 1 1 auto;
    }

    .cg-wrap coords.ranks coord {
        transform: translateY(39%);
    }