HTML canvas shadowBlur Property

Introduction

Draw a red rectangle with a black shadow, with blur level of 20:

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<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="300" height="180" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML5 canvas tag.</canvas>

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.shadowBlur = 20;// w ww .  j  a  v  a 2s  .  c o  m
ctx.shadowColor = "black";
ctx.fillStyle = "red";
ctx.fillRect(20, 20, 100, 80);
</script>

</body>
</html>

The shadowBlur property sets or gets the blur level for shadows.

The shadowBlur property Default value: 0 

context.shadowBlur = number;

Property Values

Value Description
number The blur level for the shadow



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