CSS Property: z-index
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The CSS (CSS1) z-index property specifies the stack
order of an element, i.e. which is “in front of” other elements, and hence
which is visible if several would otherwise appear in the same place. Elements
with higher stack order (z-index value) are shown in preference to ones with
lower stack order. It only works on positioned elements, i.e. with position:absolute, position:relative or position:fixed.
Valid property values
(other than inherit
and initial) are:
|
Value
|
Description
|
|
number
|
Stack order set to a
specified value (which can be negative)
|
|
auto
|
(default value). Stack
order of element set to the same as its parent’s stack order
|
|
Default Value:
|
auto
|
|
JavaScript syntax:
|
e.g. object.style.zIndex="-1"
|
|
Inherited:
|
No
|
|
Animatable:
|
Yes
|
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