JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>

  	<div id="chartContainer" style="height: 275px; width: 100%;"></div>
	<button id="button">Modify stripLine</button>
  	  	<span id="display"></span>

JavaScript

window.onload = function () {
  var chart = new CanvasJS.Chart("chartContainer", {
    axisX:{
      valueFormatString: "DD,MMM HH:mm 'hr'",
      stripLines:[{                
          startValue: new Date(2019,08,13),// 2019-08-13 at 12:00 h
          endValue: new Date(2019,08,18), // 2019-08-18 at 23:00 hr
          label: "In the 40s"
        }]                    
    },
    data: [
      {
        type: "splineArea",            
        color: "rgba(83, 223, 128, .6)",
        xValueType: "dateTime",
        dataPoints: [
          { x: 1568304000000, y: 0},
          { x: 1568307600000, y: 9.8},
          { x: 1568340000000, y: 55},
          { x: 1568343600000, y: 55},
          { x: 1568347200000, y: 55},
          { x: 1568350800000, y: 55},
          { x: 1568422800000, y: 46.4},
          { x: 1568426400000, y: 46.4},
          { x: 1568430000000, y: 46.4},
          { x: 1568433600000, y: 46.4},
          { x: 1568437200000, y: 46},
          { x: 1568440800000, y: 46},
          { x: 1568444400000, y: 46},
          { x: 1568448000000, y: 46},
          { x: 1568451600000, y: 46},
          { x: 1568494800000, y: 45.5},
          { x: 1568498400000, y: 45.5},
          { x: 1568606400000, y: 45.4},
          { x: 1568610000000, y: 45.4},
          { x: 1568707200000, y: 45},
          { x: 1568710800000, y: 45},
          { x: 1568836800000, y: 44},
          { x: 1568840400000, y: 44},
          { x: 1568919600000, y: 41},
          { x: 1568923200000, y: 42},
          { x: 1568948400000, y: 43},
          { x: 1568952000000, y: 43},
          { x: 1568955600000, y: 43}
        ]
      }
    ]        
  });
  chart.render();
  document.getElementById("button").addEventListener("click", function(){
    var label = chart.axisX[0].stripLines[0].get("label");	
    document.getElementById("display").innerHTML = "Initial Label: " + label;
    chart.axisX[0].stripLines[0].set("color","red", false);
    chart.axisX[0].stripLines[0].set("label","New...