.asb-d3-chart {

    & .tooltip {
        @color: white;
        @bg-color: rgba(0, 0, 0, .75);
    
        color: @color;
        position: absolute;
        padding: 0;
        border: none;
        border-radius: 2px;
        background-color: @bg-color;
    
        transition: opacity .1s ease-out;
    
        @arrow-size: 8px;
    
        &::after {
            content: ' ';
            position: absolute;
            width: 0;
            height: 0;
            border: @arrow-size solid transparent;
        }
    
        &.bottom::after {
            border-top-color: @bg-color;
            top: 100%;
            left: 50%;
            margin-left: -@arrow-size;
        }
    }

    & .chart-empty {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
        height: 100%;
    }
}