<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link
href="https://cdn.jsdelivr.net/npm/bootstrap/dist/css/bootstrap.min.css"
rel="stylesheet"
/>
<link href="styles2.css" rel="stylesheet" />
<title>Document</title>
</head>
<body>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link
href="https://cdn.jsdelivr.net/npm/bootstrap/dist/css/bootstrap.min.css"
rel="stylesheet"
/>
<link href="styles.css" rel="stylesheet" />
<!-- اضافه کردن فایل CSS خارجی -->
<title>هدر با بوت استرپ</title>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-custom">
<div class="container">
<!-- دکمه منو همبرگر -->
<button
class="navbar-toggler"
type="button"
data-bs-toggle="collapse"
data-bs-target="#navbarNav"
aria-controls="navbarNav"
aria-expanded="false"
aria-label="Toggle navigation"
>
<span class="navbar-toggler-icon"></span>
</button>
<!-- منو -->
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="#">HTML</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">CSS</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Javascript</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">PHP</a>
</li>
</ul>
</div>
</div>
</nav>
<script src="https://cdn.jsdelivr.net/npm/bootstrap/dist/js/bootstrap.min.js"></script>
</body>
</html>
</body>
</html>