Reagent allows using any React classes directly, an example can be seen in the cookbook<p><a href="https:&#x2F;&#x2F;github.com&#x2F;reagent-project&#x2F;reagent-cookbook&#x2F;blob&#x2F;master&#x2F;recipes&#x2F;ReactCSSTransitionGroup&#x2F;src&#x2F;cljs&#x2F;animation&#x2F;core.cljs" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;reagent-project&#x2F;reagent-cookbook&#x2F;blob&#x2F;mas...</a>