JSFiddle - React, Tailwind, and code Playground

by jeremyblalock

HTML

<div id='outer'>
    <div id='wrapper'></div>
    <div id='tooltip'></div>
</div>

CSS

* {
    box-sizing: border-box;
}
body {
    font-family: sans-serif;
}
#wrapper {
    border: 1px solid #f00;
    height: 200px;
}
#outer {
    position: relative;
    margin-top: 50px;
}
.graph-line {
    fill: none;
    stroke: #ccc;
    stroke-width: 2
}
.graph-circle {
    stroke: #aaa;
    fill: #fff;
}
.hover-target {
    opacity: 0;
}
#tooltip {
    position: absolute;
    height: 24px;
    background: rgba(0, 0, 0, .7);
    color: #fff;
    width: 70px;
    padding: 5px 0;
    line-height: 14px;
    margin-left: -35px;
    margin-top: -33px;
    text-align: center;
    pointer-events: none;
    -webkit-transition: all .3s;
}
#tooltip:before {
    content: '';
    display: block;
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -4px;
    border: 4px solid transparent;
    border-bottom: 0;
    border-top-color: rgba(0, 0, 0, .7);
}

JavaScript

var data = [
	{date:1385534101, price:909.85},
	{date:1385534160, price:912.11},
	{date:1385534222, price:913.02},
	{date:1385534281, price:913.82},
	{date:1385534340, price:908.68},
	{date:1385534402, price:915.03},
	{date:1385534460, price:910.93},
	{date:1385534521, price:910.59},
	{date:1385534582, price:910.59},
	{date:1385534641, price:910.59},
	{date:1385534701, price:914.83},
	{date:1385534761, price:917.08},
	{date:1385534821, price:917.17},
	{date:1385534881, price:918.80},
	{date:1385534941, price:918.80},
	{date:1385535001, price:918.80},
	{date:1385535061, price:918.83},
	{date:1385535121, price:918.81},
	{date:1385535180, price:919.34},
	{date:1385535248, price:916.57},
	{date:1385535301, price:916.57},
	{date:1385535362, price:917.18},
	{date:1385535421, price:917.18},
	{date:1385535481, price:918.92},
	{date:1385535540, price:918.91},
	{date:1385535601, price:917.08},
	{date:1385535661, price:919.68},
	{date:1385535721, price:919.68},
	{date:1385535780, price:919.18},
	{date:1385535842, price:919.91}
];

var data2 = [
	{date:1385534101, price:983.17},
	{date:1385534160, price:984.93},
	{date:1385534222, price:985.36},
	{date:1385534281, price:985.44},
	{date:1385534340, price:984.78},
	{date:1385534402, price:984.39},
	{date:1385534460, price:988.12},
	{date:1385534521, price:977.91},
	{date:1385534582, price:981.12},
	{date:1385534641, price:981.65},
	{date:1385534701, price:986.23},
	{date:1385534761, price:986.23},
	{date:1385534821, price:989.13},
	{date:1385534881, price:986.23},
	{date:1385534941, price:978.60},
	{date:1385535001, price:978.60},
	{date:1385535061, price:983.18},
	{date:1385535121, price:983.18},
	{date:1385535180, price:983.26},
	{date:1385535248, price:983.31},
	{date:1385535301, price:982.14},
	{date:1385535362, price:982.14},
	{date:1385535421, price:982.14},
	{date:1385535481, price:982.23},
	{date:1385535540, price:982.24},
	{date:1385535601, price:980.11},
	{date:1385535661, price:980.11},
	{date:1385535721,...