React: guide with CSS Transitions Not Triggering on State Change in Functional Component
I just started working with I'm experiencing an scenario with CSS transitions not triggering as expected when the state changes in my functional React component... I'm using React 18.0 and styled-components 5.3.0 for styling. I have a simple toggle button that should change the background color of a div with a smooth transition, but it seems to jump directly to the new color without any fade effect. Here’s the relevant code snippet: ```javascript import React, { useState } from 'react'; import styled from 'styled-components'; const Container = styled.div` width: 200px; height: 200px; background-color: ${props => (props.isActive ? 'blue' : 'red')}; transition: background-color 0.5s ease; `; const ToggleButton = () => { const [isActive, setIsActive] = useState(false); const handleToggle = () => { setIsActive(prev => !prev); }; return ( <div> <Container isActive={isActive} /> <button onClick={handleToggle}>Toggle Color</button> </div> ); }; export default ToggleButton; ``` When I click the button, the background color changes instantly rather than transitioning smoothly from red to blue. I’ve checked the browser's developer tools and confirmed that the CSS transition is being applied, but it doesn’t seem to register the change as a transition. I’ve tried debugging by logging the `isActive` state value and confirming it flips as expected. However, `React.StrictMode` might be causing issues during development – I’ve removed it temporarily, but the question continues. Any suggestions on how to ensure the transition works correctly? Did I miss something in the implementation, or is there another common pitfall with styled-components and CSS transitions? Any help would be greatly appreciated!