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How to Mastering Z-index

How to Mastering Z-index
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Predictably, the final tip in this CSS series is all about z-index. If you want to control the stacking order of elements, you can do so with z-index. But z-index will only take affect if the element also has a position value of absolute, relative or fixed. Placing elements precisely with position is great for building up complex layouts or interesting UI patterns but it’s common to want to control stacking order without moving the element from its original place on the page.
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