In CSS Flexbox, why are there no justify-items and justify-self

Consider the main axis and cross axis of a flex container: Source: W3C To align flex items along the main axis there is one property: justify-content To align flex items along the cross axis the

Aligning items in a flex container - CSS: Cascading Style Sheets

css - How does flex-wrap work with align-self, align-items and

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html - How to add justify-content:space between only to 2nd and

html - Why doesn't align-self: stretch work on a flex item

How to Justify a Single Flex Item in CSS Flexbox - Beginner Tutorial

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html - justify-content: space-between with equal space between

Flexbox Codrops