<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1, shrink-to-fit=no"
    />
    <meta name="theme-color" content="#ffffff" />
    <meta name="description" content="ReactCSSTransitionReplace Demo">

    <title>ReactCSSTransitionReplace</title>

    <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
    <link rel="stylesheet" href="//bootswatch.com/cerulean/bootstrap.min.css">
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>
    <div id="root"></div>
  </body>
</html>

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1, shrink-to-fit=no"
    />
    <meta name="theme-color" content="#ffffff" />
    <meta name="description" content="ReactCSSTransitionReplace Demo">

    <title>ReactCSSTransitionReplace</title>

    <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
    <link rel="stylesheet" href="//bootswatch.com/3/cerulean/bootstrap.min.css">
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>
    <div id="root"></div>
  </body>
</html>

Fix demo cerulean stylesheet URL
Fix demo cerulean stylesheet URL
