.c3{
    height: 250px;
}
.c3-legend-item {
    fill: #9fabb1;
 }

 .c3 .c3-axis-x path, 
 .c3 .c3-axis-x line, 
 .c3 .c3-axis-y path, 
.c3 .c3-axis-y line, 
.tick text { stroke: $white; }