.center-table
{
  margin-left: auto;
  margin-right: auto;
  width: 30% /* optional: specify a width, e.g., 80% or 600px */;
}

td, th {
  text-align: left;
}
tr:hover {background-color: rgb(145, 198, 198);}

tr.spaceUnder>td {
  padding-bottom: 2em;
}