Why Doesn't My Sticky-Positioned Element with `bottom: 0` Appear?

Why Sticky Positioning Doesn't Work with 'bottom: 0'

Sticky positioning allows an element to remain fixed within its containing block until it reaches a specified threshold. However, when using 'bottom: 0', this behavior may seem to be absent.

In the provided code, the "move" element is assigned 'position: sticky' and 'bottom: 0'. According to the definition of sticky positioning, an element will become fixed when it reaches a threshold within its flow root. However, in the given example, the "move" element is not visible because its parent block has a significant margin-top.

As scrolling occurs, the parent block crosses the threshold for the "move" element to become fixed. However, since the parent block is hidden off-screen, the "move" element also becomes hidden. To observe the intended behavior, increase the margin-top of the parent block to push it further off-screen.

Therefore, the 'bottom: 0' setting with sticky positioning is functional, but it requires sufficient space below the containing block to observe the element remaining fixed at the bottom edge.

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