Html Css Javascript Crash Course Online

/* Dark theme overrides */ body.dark --bg: #1e1e2f; --text: #f0f0f0; --box-bg: #2a2a3b; --box-border: #444; --btn-bg: #f9f9f9; --btn-text: #1e1e2f;

body font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); margin: 0; padding: 2rem; transition: all 0.3s ease; html css javascript crash course

button:hover transform: scale(1.02); opacity: 0.9; /* Dark theme overrides */ body