Html And Css And Javascript Pdf Here
.demo-box background: white; border-radius: 1rem; padding: 1rem; margin: 1.5rem 0; border: 1px solid #cbd5e6; box-shadow: 0 2px 5px rgba(0,0,0,0.05);
if (demoBtn) demoBtn.addEventListener('click', showRandomFact); if (toggleBtn) toggleBtn.addEventListener('click', toggleHighlightStyle); html and css and javascript pdf
<!-- Responsive design tip --> <div style="background: #e6f7ff; border-radius: 1rem; padding: 1rem; margin: 1.5rem 0;"> <h3>📱 Responsive Design Tip</h3> <p>Use <strong>CSS Media Queries</strong> to adapt layout for phones, tablets and desktops. Combine with relative units (rem, vw, %).</p> <div class="code-block" style="background: #1e293b;"> @media (max-width: 768px) <br> .tech-grid flex-direction: column; <br> h1 font-size: 2rem; <br> </div> </div> and user interactions.<
.hero-desc font-size: 1.2rem; color: #334155; line-height: 1.5; border-left: 4px solid #94a3b8; padding-left: 1.2rem; margin: 1rem 0 2rem 0; // Fetch example (modern)<
<!-- Best practices & resources --> <div class="comparison" style="background: #fefce8;"> <h3>📖 Best Practices & Modern Standards</h3> <ul style="margin-left: 1.5rem; line-height: 1.6; color: #1e293b;"> <li><strong>HTML:</strong> Use semantic elements ( <code><header>, <nav>, <main>, <article></code> ) for accessibility and SEO.</li> <li><strong>CSS:</strong> Mobile-first design, CSS variables for theming, Flex/Grid for layouts, avoid !important.</li> <li><strong>JavaScript:</strong> Use modern ES6+ features (arrow functions, async/await, modules). Write clean, maintainable code.</li> <li><strong>Performance:</strong> Minimize reflows, lazy load assets, optimize images, and leverage browser caching.</li> </ul> </div>
table width: 100%; border-collapse: collapse; font-size: 0.95rem;
<!-- JS explanation and asynchronous nature --> <div> <h3>⚙️ JavaScript Engine & Asynchronous Patterns</h3> <p>JavaScript is single-threaded but uses event loop to handle async tasks. Promises, <code>async/await</code> and callbacks enable non-blocking I/O — critical for API calls, timers, and user interactions.</p> <div class="code-block"> // Fetch example (modern)<br> async function fetchData() <br> const res = await fetch('https://api.github.com');<br> const data = await res.json();<br> console.log(data);<br> <br> fetchData(); </div> </div>
