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<html><body><h1>HTML5 Canvas shadowBlur</h1><canvas id="myCanvas" width="300" height="150" style="border:1px solid grey">Sorry, your browser does not support canvas.</canvas><script>const canvas = document.getElementById("myCanvas");const ctx = canvas.getContext("2d");// Shadowctx.shadowColor = "lightblue";ctx.shadowBlur = 8;ctx.shadowOffsetX = 10;ctx.shadowOffsetY = 10;// Filled rectanglectx.fillStyle = "blue";ctx.fillRect(20, 20, 100, 100);// Stroked rectanglectx.lineWidth = 4;ctx.strokeStyle = "blue";ctx.strokeRect(170, 20, 100, 100);</script></body></html>