h1 { font-size: 1.8em; color: #2c3e50; border-bottom: 2px solid #c0392b; padding-bottom: 0.3em; } h2 { font-size: 1.4em; color: #c0392b; margin-top: 1.5em; } a { color: #2980b9; text-decoration: none; } a:hover { text-decoration: underline; } .highlight { background-color: #fff9c4; padding: 0 4px; }…