CSS Interview Question: Change Body Background Using Checkbox (No JavaScript) #coding #htmlcss

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📅 13/05/2026 4:30pm

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📝 Description

A short tutorial demonstrating a solution to a common CSS interview question: altering the body background color based on the state of a checkbox input without utilizing JavaScript. The approach relies solely on Cascading Style Sheets (CSS) for functionality.

This method specifically implements the modern CSS :has() pseudo-class selector to establish the relationship between the input element and the document body. The tutorial further incorporates CSS transitions to ensure a smooth visual effect when the background color change occurs upon user interaction with the checkbox.

The solution is presented as an example of leveraging advanced or modern CSS selectors for interactive frontend development tasks.

🏷️ Tags

CSS interview question change body background css css checkbox css has selector pure css tricks

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📊 Video Information

📺 Platform youtube logo png clip art
Duration 00:43
🆔 Video ID 194452