body {
font-family: Arial, sans-serif;
line-height: 1.6;
margin: 0;
padding: 0;
background: #f4f4f4;
color: #333;
}

header {
    background: #333;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

nav ul {
    padding: 0;
    list-style: none;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

nav a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: auto;
    background: #fff;
}

section {
    margin-bottom: 20px;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 10px auto;
    border-radius: 50%; /* For a circular profile picture */
}

footer {
    text-align: center;
    padding: 20px;
    background: #333;
    color: #fff;
}