table.center-cells {
  border-collapse: collapse;
  width: 1000px;
}

table.center-cells  td {
  border: 1px solid black;
  width: 25%;
  padding: 16px;
  font-family: monospace;
  text-align: center;
  vertical-align: middle;
  font-size: 16px;
}




table.col-head {
  border-collapse: collapse;
}

table.col-head  th {
  border: 1px solid black;
  padding: 8px;
  font-family: monospace;
  font-style: bold;
  text-align: left;
  vertical-align: middle;
  font-size: 16px;
}

table.col-head  td {
  border: 1px solid black;
  padding: 8px;
  font-family: monospace;
  text-align: left;
  vertical-align: middle;
  font-size: 16px;
}