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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.

Give it a Try!

Browser Support

Desktop
Explorer Edge Chrome Firefox Opera Safari
4121141
Tablets / Mobile
Android Chrome Firefox Opera Safari Samsung
≤371841411.0

Last updated by CSSPortal on: 1st November 2019


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