JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://rawgit.com/nnnick/Chart.js/master/Chart.min.js"></script>
<canvas id="myChart" width="650" height="400"></canvas>

JavaScript

var data = {
    labels: ["-2h", "-10m", "-7m", "-2m", "-5s"],
    datasets: [{
        data: [12.5, 3.1, null, null, null],
        fillColor: "rgba(151,205,187,0.2)",
        strokeColor: "rgba(151,205,187,1)",
        pointColor: "rgba(151,205,187,1)",
        pointStrokeColor: "#fff",
        pointHighlightFill: "#fff",
        pointHighlightStroke: "rgba(151,205,187,1)",
    }, {
        data: [null, 3.1, 3.3, 4.2, null],
        fillColor: "rgba(151,187,205,0.2)",
        strokeColor: "rgba(151,187,205,1)",
        pointColor: "rgba(151,187,205,1)",
        pointStrokeColor: "#fff",
        pointHighlightFill: "#fff",
        pointHighlightStroke: "rgba(151,187,205,1)",
    }, {
        data: [null, null, null, 4.2, 15.5],
        fillColor: "rgba(205,151,187,0.2)",
        strokeColor: "rgba(205,151,187,1)",
        pointColor: "rgba(205,151,187,1)",
        pointStrokeColor: "#fff",
        pointHighlightFill: "#fff",
        pointHighlightStroke: "rgba(205,151,187,1)",
    }
    ]
};

var ctx = document.getElementById("myChart").getContext("2d");
var options = {
   showTooltips: false,
   datasetFill: true,
}

var chart = new Chart(ctx).Line(data, options);