<!DOCTYPE HTML>
<html>
<head>
<style>
body {
margin: 0px;
padding: 0px;
}
#myCanvas {
border: 1px solid #FF92D8;
}
</style>
<script>
window.onload = function() {
var canvas = document.getElementById("myCanvas");
var context = canvas.getContext("2d");
/////////////////////////////////////////////////////
var centerX = canvas.width / 2;
var centerY = canvas.height / 2;
var radius = 200;
context.beginPath();
context.arc(centerX, centerY, radius, 0, 2 * Math.PI, false);
var grd=context.createRadialGradient(centerX, centerY, 30, centerX, centerY, 200);
grd.addColorStop(0, "#000000");
grd.addColorStop(0.33, "#FC0BF4");
grd.addColorStop(0.67, "#00994C");
grd.addColorStop(1, "#FC0B0B");
context.fillStyle = grd;
context.fill();
context.stroke();
////////////////////////////////////////////////////
};
</script>
</head>
<body>
<canvas id="myCanvas" width="800" height="600"></canvas>
</body>
</html>
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