JSFiddle - React, Tailwind, and code Playground

by leiperte

HTML

<!--Assignment 9 - Animation-->

<script type="text/javascript">
var context;
var dx= 4;
var dy=4;
var y=150;
var x=10;
function draw(){
	context= myCanvas.getContext('2d');
	context.clearRect(0,0,300,300);
	context.beginPath();
	context.fillStyle="#0000ff";
	context.arc(x,y,20,0,Math.PI*2,true);
	context.closePath();
	context.fill();
	if( x<0 || x>300)
	dx=-dx;
	if( y<0 || y>300)
		dy=-dy;
		x+=dx;
		y+=dy;
	}
setInterval(draw,10); 
</script>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>HTML5 Bouncing Ball</title>
<style type="text/css">
<!--
body { background-color:#ededed; font:normal 12px/18px Arial, Helvetica, sans-serif; }
h1 { display:block; width:600px; margin:20px auto; padding-bottom:20px; font:normal 24px/30px Georgia, "Times New Roman", Times, serif; color:#333; text-shadow: 1px 2px 3px #ccc; border-bottom:1px solid #cbcbcb; }
#container { width:600px; margin:0 auto; }
#myCanvas { background:#fff; border:1px solid #cbcbcb; }
#nav { display:block; width:100%; text-align:center; }
#nav li { display:block; font-weight:bold; line-height:21px; text-shadow:1px 1px 1px #fff; width:100px; height:21px; padding:5px; margin:0 10px; background:#e0e0e0; border:1px solid #ccc; -moz-border-radius:4px;-webkit-border-radius:4px; border-radius:4px; float:left; }
#nav li a { color:#000; display:block; text-decoration:none; width:100%; height:100%; }
-->
</style>
</head>
<body>
<h1>Bouncing a Ball</h1>
<div id="container">
		<canvas id="myCanvas" width="300" height="300"></canvas>
</div>

<button id="myBtn">
Click Me!
</button>
<p id="demo">

</p>
<script>
document.getElementById("myBtn").onclick = displayDate;
function displayDate(){
document.getElementById("demo").innerHTML = Date();
}
</script>
</body>
</html>