CSS z-index Property
 Complete CSS Reference
Definition
The z-index property sets the stack order of an element. An element with
greater stack order is always in front of another element with lower stack
order.
Note: Elements can have negative stack orders.
Note: Z-index only works on elements that have been positioned (eg
position:absolute;)!
Inherited: No
JavaScript Syntax
CSS properties can also be dynamically changed with a JavaScript.
Scripting Syntax: object.style.zIndex="1"
In our HTML DOM tutorial you can find more details about the
zIndex property.
In our HTML DOM tutorial you can also find a full
Style Object Reference.
Example
Possible Values
| Value |
Description |
| auto |
Default. The stack order is equal to its parents |
| number |
Sets the stack order of the element |
Try-It-Yourself Demos
Z-index
Z-index can be used to place an element "behind" another element.
Z-index
The elements in the example above have now changed their Z-index.
Complete CSS Reference
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