body {
    font-family: Arial, sans-serif;
}

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

header nav ul li {
    display: inline;
    margin-right: 20px;
}

section {
    padding: 20px;
    border-bottom: 1px solid #ccc;
}

table {
      border-collapse: collapse;
      width: 100%;
    }

   th, td {
      border: 0px solid #000;
      padding: 8px;
      text-align: left;
    }

footer {
    text-align: center;
    padding: 20px;
    background-color: #f0f0f0;
}