title: How to create a React Modal (which is appended to <body>) with transitions?
body: <p>There is a modal in this answer <a href="https://stackoverflow.com/a/26789089/883571">https://stackoverflow.com/a/26789089/883571</a> which is creating a React-based Modal by appending it to <code>&lt;body&gt;</code>. However, I found it not compatible with the transition addons provided by React.</p>
  
  <p>How to create one with transitions(during enter and leave)?</p>