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CSS z-index Property
Example
Set the z-index for an image:
img
{
position:absolute;
left:0px;
top:0px;
z-index:-1;
}
{
position:absolute;
left:0px;
top:0px;
z-index:-1;
}
Try it yourself »
Definition and Usage
The z-index property specifies the stack order of an element.
An element with greater stack order is always in front of an element with a lower stack order.
Note: z-index only works on positioned elements (position:absolute, position:relative, or position:fixed).
| Default value: | auto |
|---|---|
| Inherited: | no |
| Version: | CSS2 |
| JavaScript syntax: | object.style.zIndex="1" |
Browser Support
The z-index property is supported in all major browsers.
Note: The value "inherit" is not supported in IE7 and earlier. IE8 requires a !DOCTYPE. IE9 supports "inherit".
Property Values
| Value | Description | Play it |
|---|---|---|
| auto | Sets the stack order equal to its parents. This is default | Play it » |
| number | Sets the stack order of the element. Negative numbers are allowed | Play it » |
| inherit | Specifies that the z-index should be inherited from the parent element |
Related Pages
CSS tutorial: CSS Positioning
HTML DOM reference:
zIndex property
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