Example
Specify the size of a background image:
document.getElementById("myDIV").style.backgroundSize = "60px 120px";Try it Yourself »
Definition and Usage
The backgroundSize property sets or returns the size of the background images.
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
Numbers followed by Webkit, Moz or O specify the first version that worked with a prefix.
| Property | |||||
|---|---|---|---|---|---|
| backgroundSize | 4.0 1.0 Webkit |
9.0 | 4.0 3.6 Moz |
4.1 3.0 Webkit |
10.5 10.0 O |
Syntax
Return the backgroundSize property:
object.style.backgroundSize
Set the backgroundSize property:
object.style.backgroundSize="auto|length|cover|contain|intial|inherit"
Property Values
| Value | Description |
|---|---|
| auto | Default value. The background-image contains its width and height |
| length | Sets the width and height of the background image. The first value sets the width, the second value sets the height. If only one value is given, the second is set to "auto" |
| percentage | Sets the width and height of the background image in percent of the parent element. The first value sets the width, the second value sets the height. If only one value is given, the second is set to "auto" |
| cover | Scale the background image to be as large as possible so that the background area is completely covered by the background image. Some parts of the background image may not be in view within the background positioning area |
| contain | Scale the image to the largest size such that both its width and its height can fit inside the content area |
| initial | Sets this property to its default value. Read about initial |
| inherit | Inherits this property from its parent element. Read about inherit |
Technical Details
| Default Value: | auto |
|---|---|
| Return Value: | A String, representing the background-size property of an element |
| CSS Version | CSS3 |
Related Pages
CSS reference: background-size property
< Style Object