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jQuery .toggleClass() optimization guide as expected with CSS transitions on hover

👀 Views: 0 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-13
jquery css animation JavaScript

I've looked through the documentation and I'm still confused about After trying multiple solutions online, I still can't figure this out... I'm working with an scenario where I'm trying to toggle a class on a div when it's clicked, and also want to apply a CSS transition effect to smoothly change its background color. However, when I click the div, the class toggles, but the transition effect doesn't seem to apply as expected. Here's my setup: I'm using jQuery version 3.6.0 and the following HTML structure: ```html <div id='myDiv' class='box'>Click me!</div> ``` And here's my CSS: ```css .box { width: 100px; height: 100px; background-color: blue; transition: background-color 0.5s ease; } .box.active { background-color: red; } ``` My jQuery code looks like this: ```javascript $(document).ready(function() { $('#myDiv').on('click', function() { $(this).toggleClass('active'); }); }); ``` When I click on the div, the class `active` is applied correctly, but the transition for the background color is not showing. Instead, the background color changes immediately without any transition effect. I've double-checked that the CSS is correct and I don't see any console errors related to jQuery or CSS. I've also tried adding a delay with `setTimeout` to see if it was a timing scenario, but that didn't help either. Is there anything I'm missing that could be causing the transition to unexpected result? Thanks for any insights! Am I missing something obvious? For context: I'm using Javascript on macOS.