Incorrect applicability of `justify-items` and `justify-self` to multi-column containers

[yinhx3]

📌 Problem Description

The cheatsheet currently lists “multi-column containers” under the “Applies to” section for both justify-items and justify-self. However, this is misleading:

• The CSS Box Alignment Module Level 3 does not list multi-column containers as valid targets for justify-items or justify-self in any normative section.
• In practice, these properties have no effect on multi-column layout. This is confirmed by browser behavior and by MDN documentation, which states that only justify-content and align-content apply to multi-column containers.

✅ Suggested Fix

Please remove “multi-column containers” from the “Applies to” section for both justify-items and justify-self to avoid confusion for developers.