福田网站建设_网站建设流程_东莞建网站_app设计开发
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Responsive Navigation Menu</title><style>body { font-family: Arial, sans-serif; }.nav { display: flex; background-color: #333; }.nav a { color: white; padding: 14px 20px; text-decoration: none; display: block; }.nav a:hover { background-color: #575757; }.menu-toggle { display: none; }@media (max-width: 768px) {.nav { flex-direction: column; }.nav a { display: none; }.nav.show-menu a { display: block; }.menu-toggle { display: block; background: #333; color: white; padding: 14px; cursor: pointer; }}</style>">