Z-index cannot be added to static position DOM element.
All the DOM element by default is static position.
So if you have to add z-index, you can add relative posiiton to the DOM element.
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Z-index cannot be added to static position DOM element.
All the DOM element by default is static position.
So if you have to add z-index, you can add relative posiiton to the DOM element.
相关文章：