JSFiddle - React, Tailwind, and code Playground

by Mo Qiao

HTML

<canvas id="canvas">当前浏览器不支持Canvas，请更换浏览器后再试</canvas>

CSS

#canvas{
    width: 100%;
      height: auto;
}

JavaScript

var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
var WINDOW_WIDTH = window.screen.availWidth;
var WINDOW_HEIGHT = window.screen.availWidth;
ctx.beginPath();
  ctx.moveTo(75, 50);
  ctx.lineTo(100, 75);
  ctx.lineTo(100, 25);
  ctx.closePath();
  ctx.stroke();