body, h1, h2, p {
    margin: 0;
    padding: 0;
}

header {
    text-align: center;
    background-color: #0077B5;
    color: #fff;
    padding: 20px;
}

.profile-image img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 4px solid #fff;
    margin: 0 auto;
    display: block;
}

nav ul {
    list-style: none;
    text-align: center;
    margin-top: 20px;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: #0077B5;
    font-weight: bold;
}

.about-me {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

footer {
    text-align: center;
    background-color: #f4f4f4;
    padding: 10px;
}