chutes-and-ladders-d3.css

                .y.axis line, .y.axis path {
                    fill: none;
                    stroke-width: 1.0;
                    stroke: dimgrey;
                    shape-rendering: crispEdges;
                    }

                .y.axis text {
                    fill: dimgrey;
                    }

                // x axis
                .xticks text {
                    fill: dimgrey;
                    }