body {
    background-color: #f4f4f4;
    font-family: Arial, sans-serif;
    color: #333;
    margin: 0;
    padding: 0;
    text-align: center;
}

header {
    background-color: #0270e2;
    padding: 20px;
    color: white;
}

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

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

nav a {
    text-decoration: none;
    color: white;
    font-weight: bold;
}

main {
    padding: 20px;
}

h2 {
    color: #0270e2;
}

footer {
    background-color: #222;
    color: white;
    padding: 20px;
    margin-top: 20px;
}

footer ul {
    list-style-type: none;
    padding: 0;
}

table {
    width: 60%;
    margin: 0 auto;
    border-collapse: collapse;
}

th, td {
    border: 1px solid white;
    padding: 10px;
    text-align: center;
}

th {
    background-color: #0270e2;
    color: white;
}