<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<canvas id="canvas" style="margin:0 auto;border:1px #ddd solid">
The current browser does not support Canvas, can replace the browser a try!
</canvas>
<script>
window.onload = function(){
var canvas = document.getElementById('canvas');
canvas.width = 1024;
canvas.height = 768;
if(canvas.getContext('2d')){
var context = canvas.getContext('2d');
context.fillStyle = "#058";
context.font = "bold 120px Arial";
context.textAlign = "center";
context.textBaseline = "middle";
//begin
context.shadowColor = "gray";
context.shadowOffsetX = 20;
context.shadowOffsetY = 20;
context.shadowBlur = 25;
context.fillText("Canvas",canvas.width/2,canvas.height/2)
}else{
alert('当前游览器不支持Canvas，请更换游览器后再试！');
}
}
</script>
</body>
<script>
/*阴影
context.shadowColor
//偏移坐标
context.shadowOffsetX
context.shadowOffsetY
//模糊程度
context.shadowBlur
*/
</script>
</html>
