JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdn.canvasjs.com/canvasjs.min.js"></script>
<div id="chartContainer" style="height: 300px; width: 100%;"></div>

JavaScript

window.onload = function () {
  var chart = new CanvasJS.Chart("chartContainer", {
    title: {
      text: "Stripline on  Axis X"
    },
    axisX:{
      stripLines:[{                
        value: 1940,
        thickness: 10,
        color:"red"                      
      }],
      valueFormatString: "####"
    },
    data: [{
      type: "splineArea",            
      color: "rgba(83, 223, 128, .6)",
      dataPoints: [
        { x: 1910, y: 5 }, 
        { x: 1920, y: 9 }, 
        { x: 1930, y: 17}, 
        { x: 1940, y: 32, indexLabel: "1940 Text", indexLabelBackgroundColor: "#fff" }, 
        { x: 1950, y: 22}, 
        { x: 1960, y: 14}, 
        { x: 1970, y: 25}, 
        { x: 1980, y: 18}, 
        { x: 1990, y: 20}
      ]
    }]        
  });
  chart.render();
}