HTML canvas shadowOffsetY Property
Example
Draw a rectangle with a shadow placed 20 pixels below the rectangle's top position:
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
The numbers in the table specify the first browser version that fully supports the property.
| Property | |||||
|---|---|---|---|---|---|
| shadowOffsetY | Yes | 9.0 | Yes | Yes | Yes |
Definition and Usage
The shadowOffsetY property sets or returns the vertical distance of the shadow from the shape.
shadowOffsety = 0 indicates that the shadow is right behind the shape.
shadowOffsetY = 20 indicates that the shadow starts 20 pixels below the shape's top position.
shadowOffsetY =- 20 indicates that the shadow starts 20 pixels above the shape's top position.
Tip: To adjust the horizontal distance of the shadow from the shape, use the shadowOffsetX property.
| Default value: | 0 |
|---|---|
| JavaScript syntax: | context.shadowOffsetY=number; |
Property Values
| Value | Description | Play it |
|---|---|---|
| number | A positive or negative number that defines the vertical distance of the shadow from the shape | Play it » |
❮ HTML Canvas Reference
