Inline-Flex vs. Flex: When Should You Use Which for Vertical Alignment?

Display: Inline-Flex vs. Display: Flex

To vertically align elements within a container, you might consider setting the container's display property to inline-flex. However, you may encounter confusing results as you did.

The distinction between display: inline-flex and display: flex lies in their effect on the container itself, not the flex items. Display: inline-flex makes the container display inline, whereas display: flex makes it a block-level element.

Crucially, this difference does not affect the layout of the flex items. Flex items always behave like block-level boxes, regardless of the container's display type. Attempting to display flex items inline with inline-flex will disrupt the core functionality of flexbox.

Therefore, if your goal is to vertically align content, consider using display: inline or display: inline-block instead. Flexbox is not a suitable solution for this purpose, as it is designed for flexible, responsive layout, not vertical alignment.

In summary, display: inline-flex simply affects the container's display mode, not the layout of its flex items. For tasks that require vertical alignment, alternative inline display types are more appropriate.

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