path {
	stroke: steelblue;
	stroke-width: 2;
	fill: none;
}

.axis {
	font-size: 80%;
}

.axis path,
.axis line {
	fill: none;
	stroke: grey;
	stroke-width: 1;
	shape-rendering: crispEdges;
}

.grid .tick {
	stroke: lightgrey;
	opacity: 0.7;
}

.grid path {
	stroke-width: 0;
}