1. <script src="shared.js"></script>
    
  2. <style>
    
  3.   html, body {
    
  4.     font-size: 14px;
    
  5.     min-width: 460px;
    
  6.     min-height: 133px;
    
  7.   }
    
  8. 
    
  9.   body {
    
  10.     margin: 8px;
    
  11.   }
    
  12. 
    
  13.   hr {
    
  14.     width: 100%;
    
  15.   }
    
  16. </style>
    
  17. <p>
    
  18.   <b>This page is using an unminified build of React. &#x1f6a7;</b>
    
  19. </p>
    
  20. <p>
    
  21.   The React build on this page appears to be unminified.
    
  22.   <br />
    
  23.   This makes its size larger, and causes React to run slower.
    
  24.   <br />
    
  25.   <br />
    
  26.   Make sure to <a href="https://reactjs.org/docs/optimizing-performance.html#use-the-production-build">set up minification</a> before deployment.
    
  27. </p>
    
  28. <hr />
    
  29. <p>
    
  30.   Open the developer tools, and  "Components" and "Profiler" tabs will appear to the right.
    
  31. </p>