body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
background-color: #f4f4f4;
}

nav {
background-color: #333;
color: white;
padding: 10px 0;
}

nav ul {
list-style-type: none;
margin: 0;
padding: 0;
display: flex;
justify-content: center;
}

nav ul li {
position: relative;
margin: 0 15px;
}

nav ul li a {
color: white;
text-decoration: none;
}

.submenu {
display: none;
position: absolute;
background-color: #444;
min-width: 150px;
}

nav ul li:hover .submenu {