What CSS property or layout method fixes A dropdown is hidden behind another positioned section. in a blog article?

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

Problem: A dropdown is hidden behind another positioned section. Context: This CSS troubleshooting question uses a blog article example. Correct approach: Give the dropdown a stacking context/position and a suitable z-index, while checking ancestor stacking contexts. Working CSS: .dropdown { position:relative; z-index:1000; }

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Answer & Explanation

4 Answers

Verified Correct Answer

A. Correct CSS solution

.dropdown { position:relative; z-index:1000; }

Additional Explanation

Give the dropdown a stacking context/position and a suitable z-index, while checking ancestor stacking contexts.

Verified

B. Common but incorrect approach

Use z-index:-1 on the dropdown

Additional Explanation

This approach does not directly implement the required CSS behavior.

Verified

C. Incorrect CSS alternative

Use font-weight:9999

Additional Explanation

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

Verified

D. Another incorrect approach

Use opacity:2

Additional Explanation

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