Question:

What is the purpose of the z-index and how is it used?

Answer:

    • The z-index helps specify the stack order of positioned elements that may overlap one another. The z-index default value is zero, and can take on either a positive or negative number.
    • An element with a higher z-index is always stacked above one with a lower index.
    • Z-Index can take the following values:

Auto: Sets the stack order equal to its parents.

Number: Orders the stack order.

Initial: Sets this property to its default value (0).

Inherit: Inherits this property from its parent element.


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