如何使放在fabricjs对象顶部的DOM元素即使在水平滚动时也留在那里

var canvas = new fabric.Canvas('canvas-container');

var rect = new fabric.Rect({
  left: 100,
  top: 100,
  width: 200,
  height: 100,
  fill: 'red'
});

canvas.add(rect);

var domElement = document.createElement('div');
domElement.style.position = 'absolute';
domElement.style.left = '100px';
domElement.style.top = '100px';
domElement.innerHTML = 'Hello World';

document.body.appendChild(domElement);

canvas.on('after:render', function() {
  var rectCoords = rect.getBoundingRect();

  domElement.style.left = rectCoords.left + 'px';
  domElement.style.top = rectCoords.top + 'px';
});