Html Css Javascript Crash Course May 2026

/* style.css */ :root --bg: #f9f9f9; --text: #1e1e2f; --box-bg: #ffffff; --box-border: #ddd; --btn-bg: #1e1e2f; --btn-text: #f9f9f9;

.container max-width: 600px; margin: 0 auto; text-align: center; html css javascript crash course

button:hover transform: scale(1.02); opacity: 0.9; /* style

// Update button text & save preference if (body.classList.contains('dark')) button.textContent = '☀️ Light Mode'; localStorage.setItem('theme', 'dark'); else button.textContent = '🌙 Dark Mode'; localStorage.setItem('theme', 'light'); /* style.css */ :root --bg: #f9f9f9