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

table {
  border-collapse: collapse;
  border-spacing: 0;
}

td {
  border: 1px solid #aaa;
  border-collapse: collapse;
  padding: .5rem;
}

thead td {
  background: #ccc;
  font-weight: bold;
}