Unverified50% confidenceFactExact time

In Flex layout, once display:flex is declared on the parent container, justify-content controls main-axis alignment and align-items controls cross-axis alignment, enabling horizontal and vertical centering of content.

1

Sources

50%

Confidence

Long-term

Relevance

9/11/2026

First Seen

Sources

HTML & CSS Beginner's Guide: Core Concepts and Hands-On Walkthrough

Related Entities

Flexboxtechnology CSStechnology

Related Claims

UnverifiedThe Flexbox specification was stabilized in 2012, addressing the pain points of vertical centering and equal-height columns that existed in the era of float-based layouts.72% similar

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