JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.12/d3.js"></script>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<div class="chart">
  <div class="drawn"></div>
</div>

CSS

.chart {display:block;background:#4BAC4E;height:250px;width:600px;}

.axis path,
.axis line {
  fill: none;
  stroke: rgba(0, 0, 0, .3);
  shape-rendering: crispEdges;
}

text {
  font: 400 11px mono;
  letter-spacing: .3px;
  text-transform: uppercase;
  fill: rgba(0, 0, 0, .3);
}

.domain {
  display: none;
}

.line {
  fill: none;
  stroke: #fff;
  stroke-width: 2.3px;
}

.area {
  fill: #3d9e40;
  stroke: none;
  stroke-width: 0;
}

svg .goal {
  fill: none;
  stroke: rgba(255, 255, 255, .3);
  stroke-width: 2px;
  stroke-dasharray: 5, 5;
}

JavaScript

var entries = [{"date":"2016-01-06","value":15},{"date":"2015-11-17","value":15.4},{"date":"2015-11-11","value":16.5},{"date":"2015-09-24","value":15.1},{"date":"2015-08-22","value":15},{"date":"2015-08-12","value":15},{"date":"2015-07-30","value":14.6},{"date":"2015-07-19","value":14.8},{"date":"2015-07-18","value":14.9},{"date":"2015-07-12","value":14.9},{"date":"2015-07-08","value":14.9},{"date":"2015-06-29","value":14.3},{"date":"2015-06-21","value":14.5},{"date":"2015-06-18","value":14.7},{"date":"2015-06-09","value":15},{"date":"2015-06-08","value":14.1},{"date":"2014-12-06","value":13.4},{"date":"2014-09-10","value":13.1},{"date":"2014-08-01","value":14.2},{"date":"2014-07-07","value":15},{"date":"2014-05-31","value":14},{"date":"2014-05-24","value":15},{"date":"2014-05-14","value":15},{"date":"2014-05-13","value":14},{"date":"2014-05-08","value":14.5},{"date":"2014-05-02","value":15}],
		goal = {"value":13.5,"date":"2014-05-02"};


var margin = {top: 30, right: 20, bottom: 30, left: 50},
	overlayW = $('.chart').innerWidth(),
	overlayH = $('.chart').innerHeight(),
	width = overlayW,
	height = 250 - margin.top - margin.bottom,

	parseDate = d3.time.format("%Y-%m-%d").parse,
	bisectDate = d3.bisector(function(d) { return d.date; }).left,
	formatValue = d3.format(",.2f");

var x = d3.time.scale()
	.range([0, width]);

var y = d3.scale.linear()
	.range([height, 0]);

var xAxis = d3.svg.axis()
	.scale(x)
	.tickSize(0)
	.tickValues(x.domain())

	.orient("bottom")
	.tickFormat(d3.time.format("%b"));

var yAxis = d3.svg.axis()
	.scale(y)
	.tickSize(0)
	.ticks(5)
	.orient("left");

var area = d3.svg.area()
	.x(function(d) { return x(d.date); })
	.y0(height)
	.y1(function(d) { return y(d.value); })
	.interpolate('monotone');

var line = d3.svg.line()
	.x(function(d) { return x(d.date); })
	.y(function(d) { return y(d.value); })
	.interpolate('monotone');


var svg = d3.select(".drawn").append("svg")
		.attr("width", width)
		.attr("height", height + margin.top +...