<!DOCTYPE HTML>
<html>
<body>
<canvas id="myCanvas">your browser does not support the canvas tag </canvas>
<script type="text/javascript">
var canvas=document.getElementById('myCanvas');
var ctx=canvas.getContext('2d');
ctx.fillStyle='#FF0000';
ctx.fillRect(0,0,80,100);
</script>
</body>
</html>
Original: https://www.cnblogs.com/lxwphp/p/15847778.html
Author: 码农编程进阶笔记
Title: HTML 5 标签
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