body {
  margin: 0.5em;
  padding: 0;
  font-size: 12px;
  font-family: Arial, Verdana, sans-serif;
}

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

table td, table th {
  border: 1px solid gray;
  padding: 5px;
}

table th {
  font-weight: bold;
}