HTML canvas shadowOffsetYProperty
Canvas ObjectExample
Draw a rectangle with a shadow offset 20 pixels down (from the top position of the rectangle):
JavaScript：
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.shadowBlur=10;
ctx.shadowOffsetY=20;
ctx.shadowColor="black";
ctx.fillStyle="red";
ctx.fillRect(20,20,100,80);
Try it Yourself »
Browser Support
Internet Explorer 9, Firefox, Opera, Chrome, and Safari support the shadowOffsetY property.
Note:Internet Explorer 8 and earlier versions do not support the <canvas> element.
Definition and Usage
The shadowOffsetY property sets or returns the vertical distance of the shadow from the shape.
shadowOffsety=0 indicates the shadow is directly below the shape.
shadowOffsetY=20 indicates the shadow is 20 pixels below the top position of the shape.
shadowOffsetY=-20 indicates the shadow is 20 pixels above the top position of the shape.
Tip:To adjust the horizontal distance of the shadow from the shape, use theshadowOffsetXproperty.
| Default value: | 0 |
|---|---|
| JavaScript syntax: | context.shadowOffsetY=number; |
Property Value
| Value | Description |
|---|---|
| number | A positive or negative value that defines the vertical distance of the shadow from the shape. |
Other Extensions