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CSS Transition optimization guide as Expected for Nested Elements in a React App

👀 Views: 92 💬 Answers: 1 📅 Created: 2025-06-07
css react css-transition JavaScript

I'm having a hard time understanding Quick question that's been bugging me - I'm working with an scenario with CSS transitions not applying correctly to nested elements in my React application... I'm trying to animate a button's background color when hovering over its parent div, but it seems that the transition only works for the parent and not for the button itself. Here's my relevant code: ```jsx // ParentComponent.jsx import React from 'react'; import './styles.css'; const ParentComponent = () => { return ( <div className='parent'> <button className='child'>Hover me!</button> </div> ); }; export default ParentComponent; ``` And in my CSS file, I have: ```css .parent { background-color: blue; padding: 20px; transition: background-color 0.5s; } .parent:hover { background-color: green; } .child { background-color: white; transition: background-color 0.5s; } .parent:hover .child { background-color: yellow; } ``` When I hover over the parent div, the background color changes to green, but the button does not change to yellow as expected. I’ve tried increasing the specificity of the `.parent:hover .child` selector, but that didn't help. I also ensured that my CSS file is correctly linked and that there are no conflicting styles elsewhere in my application. Am I missing something with the way transitions are applied, or is there a conflict in how React re-renders components? Any guidance on how to resolve this would be greatly appreciated! I recently upgraded to Javascript 3.10. Any examples would be super helpful. My team is using Javascript for this mobile app.