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shadowOffsetX property

Gets or sets the horizontal distance of a shadow from a shape.

This property is read/write.

HTML Canvas 2D Context, Section 7Internet Explorer 9




object.shadowOffsetX = p

p = object.shadowOffsetX


Property values

Type: number

The horizontal offset value.

Standards information


You can use positive or negative values to control the position of a shadow. If you do not specify the shadowOffsetX property, the default value is zero.


The following code example creates a series of squares that have different horizontal shadow offsets.

  <script type="text/javascript">
      function draw() {
          var canvas = document.getElementById("MyCanvas");
          if (canvas.getContext) {
              var ctx = canvas.getContext("2d");
              // Define the shadow parameters.
              ctx.shadowColor = "black";
              ctx.shadowBlur = "5";
              ctx.shadowOffsetX = "5";
              ctx.shadowOffsetY = "5";

              // Change the offsetX value.
              ctx.strokeRect(25, 25, 200, 200);
              ctx.shadowOffsetX = "5";
              ctx.strokeRect(75, 75, 200, 200);
              ctx.shadowOffsetX = "10";
              ctx.strokeRect(125, 125, 200, 200);
              ctx.shadowOffsetX = "15";
              ctx.strokeRect(175, 175, 200, 200);
              ctx.shadowOffsetX = "20";
              ctx.strokeRect(225, 225, 200, 200);
<body onload="draw();">
  <canvas id="MyCanvas" width="600" height="500">This browser or document mode doesn't support canvas</canvas> 

See also




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