JSFiddle - React, Tailwind, and code Playground

HTML

<canvas></canvas>
<canvas></canvas>
<canvas></canvas>

CSS

canvas{
  border:1px solid black;
}

JavaScript

$$ = function(){
  return document.querySelectorAll.apply(document,arguments);
}
for(var i in $$('canvas')){
  canvas=$$('canvas')[i];
  canvas.width=canvas.width+100
  canvas.height=canvas.height+100
}