* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #fff;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 80%;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

.avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

h2 {
    font-size: 2rem;
    margin-bottom: 10px;
}

section {
    margin-bottom: 40px;
}

ul {
    list-style-type: none;
}

ul li {
    margin-bottom: 10px;
}

ul li a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

ul li a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 20px;
    background-color: #f4f4f4;
    margin-top: 40px;
}