   <title>Hello Website</title>
   <style>
       body {
           margin: 0;
           padding: 0;
           font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
           background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
           min-height: 100vh;
           display: flex;
           flex-direction: column;
           align-items: center;
           justify-content: center;
           color: white;
           text-align: center;
       }
       .container {
           max-width: 800px;
           padding: 40px;
           background-color: rgba(255, 255, 255, 0.1);
           backdrop-filter: blur(10px);
           border-radius: 20px;
           box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
           border: 1px solid rgba(255, 255, 255, 0.2);
       }
       h1 {
           font-size: 3.5rem;
           margin-bottom: 20px;
           text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
           background: linear-gradient(45deg, #ff9a9e, #fad0c4);
           -webkit-background-clip: text;
           -webkit-text-fill-color: transparent;
           background-clip: text;
       }
       p {
           font-size: 1.2rem;
           line-height: 1.6;
           margin-bottom: 30px;
           opacity: 0.9;
       }
       .features {
           display: flex;
           flex-wrap: wrap;
           justify-content: center;
           gap: 20px;
           margin: 30px 0;
       }
       .feature {
           background: rgba(255, 255, 255, 0.15);
           padding: 20px;
           border-radius: 12px;
           flex: 1;
           min-width: 200px;
           max-width: 250px;
           transition: transform 0.3s ease, background 0.3s ease;
       }
       .feature:hover {
           transform: translateY(-5px);
           background: rgba(255, 255, 255, 0.25);
       }
       .feature h3 {
           margin-top: 0;
           color: #ffd166;
       }
       .cta-button {
           display: inline-block;
           padding: 15px 40px;
           background: linear-gradient(45deg, #ff9a9e, #fad0c4);
           color: #333;
           text-decoration: none;
           border-radius: 50px;
           font-weight: bold;
           font-size: 1.1rem;
           margin-top: 20px;
           transition: all 0.3s ease;
           box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
       }
       .cta-button:hover {
           transform: scale(1.05);
           box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
       }
       footer {
           margin-top: 40px;
           font-size: 0.9rem;
           opacity: 0.7;
           border-top: 1px solid rgba(255, 255, 255, 0.2);
           padding-top: 20px;
           width: 100%;
       }
   </style>
   <div class="container">
       <h1>Hello World!</h1>
       <p>Welcome to our simple yet beautiful website. This is a demonstration of how inline CSS can transform a basic HTML page into an attractive web experience.</p>
       <div class="features">
           <div class="feature">
               <h3>Modern Design</h3>
               <p>Clean layout with gradient backgrounds and smooth animations.</p>
           </div>
           <div class="feature">
               <h3>Fully Responsive</h3>
               <p>Adapts to different screen sizes for optimal viewing.</p>
           </div>
           <div class="feature">
               <h3>Fast Loading</h3>
               <p>All styles are inline for immediate rendering.</p>
           </div>
       </div>
       <p>This page demonstrates the power of CSS to create engaging user interfaces without external dependencies.</p>
       <a href="#" class="cta-button">Get Started</a>
       <footer>
           <p>© 2023 Simple Website Demo | All inline CSS | No external files required</p>
       </footer>
   </div>
