           .style("fill-opacity", 0)
                .style("stroke-width", 10)
                .style("stroke-opacity", .5)
                .style("stroke", function(d,i) { return colours[i]; });

            d3.selectAll("#rings .venn-circle text")
                .style("fill", function(d,i) { return colours[i]})
                .style("font-size", "24px")
                .style("font-weight", "100");

        </script>
    </div>
    <div id="inverted">
        <script>
            var chart = venn.Venn