body {
    font-family: Arial, sans-serif;
    padding: 20px;
    background-color: #181818;
    color: white;
}
table {
    border-collapse: collapse;
    width: 100%;
    margin-top: 10px;
}
table, th, td {
    border: 1px solid #4d4d4d;
}
th, td {
    padding: 8px 12px;
    text-align: left;
}
img {
    max-width: 100%;
    height: auto;
}
#content {
    max-width: 720px;
    margin: 0 auto;
}
h1, h2, h3 {
    text-align: center;
}