Handsontable example

HTML

<link rel="stylesheet" href="https://docs.handsontable.com/pro/5.0.1/components/handsontable-pro/dist/handsontable.full.min.css">
<script src="https://docs.handsontable.com/pro/5.0.1/components/handsontable-pro/dist/handsontable.full.min.js"></script>
<div id="example1"></div>

CSS

.handsontable .ht__highlight {
	background: red !important;
}

JavaScript

var example = document.getElementById('example1');
  var hot1 = new Handsontable(example, {
    data: Handsontable.helper.createSpreadsheetData(1000, 1000),
    width: 584,
    height: 320,
    colHeaders: true
  });