/* d3 
        .axis path, .axis line
        {
            fill: none;
            stroke: #999;
            shape-rendering: crispEdges;
        }
        
        .axis text
        {
            font-family: 'arial';
          font-size: 12px;
                    fill:#666;
        }
        .tick
        {
            stroke-dasharray: 1, 2;
        }
        .bar
        {
            fill: FireBrick;
        }
        
       */