_innerHTML.html

<div id="___divID">
  <canvas id="___canvasID" width="___width" height="___height"></canvas>
</div>
<style>
  #___canvasID{
    position: fixed;
    width: ___sytleWidthpx;
    height: ___styleHeightpx;
    opacity:___opacityDefault;
    ___position: ___horizontalOffset;
    bottom: ___verticalOffsetpx;
    z-index: 999;
    pointer-events: none;
  }
</style>