body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f0f0f0;
  color: #333;
}

nav {
  background-color: #333;
  color: #fff;
  padding: 10px;
  text-align: center;
}

section {
  padding: 20px;
  text-align: center;
}

table {
  margin: 0 auto;
  border-collapse: collapse;
  width: 80%;
  max-width: 800px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

th,
td {
  padding: 10px;
  border: 1px solid #ddd;
  text-align: left;
}

th {
  background-color: #f4f4f4;
}

tfoot td {
  font-weight: bold;
  text-align: center;
}

footer {
  background-color: #333;
  color: #fff;
  padding: 10px;
  text-align: center;
  position: fixed;
  bottom: 0;
  width: 100%;
}