The z-index property is a CSS attribute that specifies the stack order of an element. It can be a positive or negative integer, or auto (the default value).

Stacking order is similar to, but distinct from, the z-index CSS property of an element. Stacking order is the actual Z order that all elements on the page are painted in, so the background of the ...

This repository demonstrates a subtle bug related to the CSS z-index property. In certain situations, the expected stacking order of elements is not maintained, even when z-index values seem correctly ...