Why does this checkout form have the issue 'A section heading should stick after reaching the top of its scroll container.' and how do I fix it?

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

Problem: A section heading should stick after reaching the top of its scroll container. Context: This CSS troubleshooting question uses a checkout form example. Correct approach: Use position:sticky with a top offset. Working CSS: .section-title { position:sticky; top:0; z-index:10; }

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Answer & Explanation

4 Answers

Verified

A. Common but incorrect approach

Use position:fixed without considering the scroll container

Additional Explanation

This approach does not directly implement the required CSS behavior.

Verified

B. Incorrect CSS alternative

Use float:sticky

Additional Explanation

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

Verified Correct Answer

C. Correct CSS solution

.section-title { position:sticky; top:0; z-index:10; }

Additional Explanation

Use position:sticky with a top offset.

Verified

D. Another incorrect approach

Use top:sticky

Additional Explanation

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