body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    text-align: center;
}
header {
    background-color: #181818;
    color: white;
    padding: 1rem;
}
header h1 {
    margin: 0;
    cursor: pointer;
}
nav {
    margin: 2rem;
}
nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: inline-flex;
    gap: 2rem;
    align-items: center;
    justify-content: center;
}
nav ul li {
    display: inline-block;
}
nav ul li a {
    text-decoration: none;
    color: black;
}
nav ul li img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
}
main {
    padding: 0 1rem 2rem 1rem;
}
main img {
    width: 100%;
    max-width: 1200px;
    height: auto;
    display: block;
    margin: 1rem auto;
}
footer {
    background-color: #181818;
    color: white;
    padding: 1rem;
    margin-top: 2rem;
}