What best practices should be followed when implementing client-side APIs or UI frameworks like Semantic-UI for improving user experience in PHP web development projects?

When implementing client-side APIs or UI frameworks like Semantic-UI in PHP web development projects, it is important to follow best practices to improve user experience. This includes properly structuring your code, optimizing performance, and ensuring compatibility with different browsers. By following these best practices, you can create a seamless and user-friendly experience for your website visitors.

<!DOCTYPE html>
<html>
<head>
  <title>My PHP Web App</title>
  <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/semantic-ui/dist/semantic.min.css">
</head>
<body>
  <div class="ui container">
    <h1>Welcome to My PHP Web App</h1>
    <p>This is a sample page using Semantic-UI for styling.</p>
  </div>
  
  <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/semantic-ui/dist/semantic.min.js"></script>
</body>
</html>