CSS z-index Property
Description
The z-index
property specifies the z-order of an element and its descendants. When elements overlap, z-order determines which one covers the other. An element with a larger z-index generally covers an element with a lower one.
- Initial value
- auto
- Applies to
- Positioned elements
- Inherited
- No
- Media
- Visual
- Computed value
- As specified
- Animatable
- Yes
- CSS Version
- CSS2, CSS3
- JavaScript syntax
- object.style.zIndex
Syntax
z-index: auto | <integer>
Values
- <integer>Integer that specifies the position of the object in the stacking order. The value is arbitrary and may be negative, zero, or positive.
- autoSpecifies the stacking order of the positioned objects based on the top-down order in which the objects appear in the HTML source.
- inherit
Example
<div class="test1">-1</div>
<div class="test2">3</div>
<div class="test3">2</div>
<div class="test4">1</div>
div {
position: absolute;
width: 100px;
height: 100px;
border: 1px solid black;
color: white;
}
.test1 {
left: 15px;
top: 15px;
background-color: red;
z-index: -1;
}
.test2 {
left: 30px;
top: 35px;
background-color: blue;
z-index: 3;
}
.test3 {
left: 45px;
top: 20px;
background-color: green;
text-align: right;
z-index: 2;
}
.test4 {
left: 60px;
top: 60px;
background-color: sienna;
text-align: right;
z-index: 1;
}
Give it a Try
Click the button below to experiment with this property.
Browser Support
Desktop | |||||
4 | 12 | 1 | 1 | 4 | 1 |
Tablets / Mobile | |||||
![]() |
|||||
≤37 | 18 | 4 | 14 | 1 | 1.0 |
Last updated by CSSPortal on: 1st November 2019
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