Question: Sandbox: https://codesandbox.io/s/practical-mountain-cjrte?file=/src/App.js I’m trying to use CSSTransition from react-transition-group, for the first time, and it does not work 🙁 When I click on my button “learn more”, I want to display the component “Expanded”(a div block) with a transition. ...

Question: With CSSTransition, I would like to animate my container div first, then, with a delay, animate its child div. I failed so far: they always animate at the same time, no matter the transition-delay set on the child. See ...