What is the clean CSS approach to solve Vertical margins between block elements appear to collapse unexpectedly. in a data table?

CSS Published 03 Oct 2026 Updated 03 Oct 2026 0 Views Verified

Problem: Vertical margins between block elements appear to collapse unexpectedly. Context: This CSS troubleshooting question uses a data table example. Correct approach: Use padding/border on the parent or create a new formatting context such as flow-root when appropriate. Working CSS: .parent { display:flow-root; }

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Answer & Explanation

4 Answers

Verified

A. Common but incorrect approach

Use z-index:9999

Additional Explanation

This approach does not directly implement the required CSS behavior.

Verified Correct Answer

B. Correct CSS solution

.parent { display:flow-root; }

Additional Explanation

Use padding/border on the parent or create a new formatting context such as flow-root when appropriate.

Verified

C. Incorrect CSS alternative

Use opacity:0

Additional Explanation

This is not a valid CSS property or does not solve the stated problem.

Verified

D. Another incorrect approach

Use position:fixed on every child

Additional Explanation

This does not address the underlying CSS layout or styling issue.