<!DOCTYPE html>
<html lang="vi">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Menu Ngang</title>
<style>
body {
font-family: Arial, sans-serif;
text-align: center;
}
.menu {
display: flex;
justify-content: center;
list-style: none;
padding: 0;
background-color: #333;
}
.menu li {
padding: 15px 20px;
cursor: pointer;
color: white;
}
.menu li:hover {
background-color: #555;
}
.image-container {
margin-top: 20px;
}
.image-container img {
max-width: 100%;
height: auto;
display: none;
}
</style>
</head>
<body>
<ul class="menu">
<li onclick="showImage('img1')">Hình 1</li>
<li onclick="showImage('img2')">Hình 2</li>
<li onclick="showImage('img3')">Hình 3</li>
</ul>
<div class="image-container">
<img id="img1" src="https://via.placeholder.com/600x300/FF5733/FFFFFF?text=Hình+1" alt="Khoa 1">
<img id="img2" src="https://via.placeholder.com/600x300/33FF57/FFFFFF?text=Hình+2" alt="Khoa 2">
<img id="img3" src="https://via.placeholder.com/600x300/3357FF/FFFFFF?text=Hình+3" alt="Khoa 3">
</div>
<script>
function showImage(id) {
const images = document.querySelectorAll('.image-container img');
images.forEach(img => img.style.display = 'none');
document.getElementById(id).style.display = 'block';
}
</script>
</body>
</html>