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The z-index Property. When elements are positioned, they can overlap other elements. The z-index property specifies the stack order of an element (which element should be placed in front of, or behind, the others). An element can have a positive or negative stack order:
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27 Σεπ 2024 · The z-index property in CSS controls the stacking order of positioned elements (those with a position property set to relative, absolute, fixed, or sticky). Elements with a higher z-index value will appear on top of those with a lower value, allowing for layered designs.
13 Ιουν 2024 · The z-index CSS property sets the z-order of a positioned element and its descendants or flex and grid items. Overlapping elements with a larger z-index cover those with a smaller one.
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.
20 Σεπ 2022 · The z-index property in CSS controls the vertical stacking order of elements that overlap. As in, which one appears as if it is physically closer to you. z-index only affects elements that have a position value other than static (the default).
The css property z-index only works on positioned elements, meaning elements must be position absolute, fixed or relative in order for the z-index property to take effect. The higher the z-index the closer to the front it will appear.
Syntax. .dropdown-backdrop { position: fixed; top: 0; right: 0; bottom: 0; left: 0; z-index: 1070; } Usage: set the z-index on the outermost parent. Why it does not work. The z-index property applies only to positioned element. It means that the position property should not be static (the default, ie also known as normal flow) Demo:
