What is the correct CSS code to solve A two-column layout should become one column on small screens. for a data table?

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

Problem: A two-column layout should become one column on small screens. Context: This CSS troubleshooting question uses a data table example. Correct approach: Use a media query to change the grid template at a breakpoint. Working CSS: @media (max-width:768px) { .layout { grid-template-columns:1fr; } }

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Answer & Explanation

4 Answers

Verified

A. Common but incorrect approach

@screen small { .layout { columns:1; } }

Additional Explanation

This approach does not directly implement the required CSS behavior.

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B. Incorrect CSS alternative

@mobile { .layout { display:one; } }

Additional Explanation

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

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C. Another incorrect approach

@media mobile { .layout { width:1; } }

Additional Explanation

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

Verified Correct Answer

D. Correct CSS solution

@media (max-width:768px) { .layout { grid-template-columns:1fr; } }

Additional Explanation

Use a media query to change the grid template at a breakpoint.