div.training hr {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}

div.training table {
  margin-left: auto;
  margin-right: auto;
  width: 650px;
}

div.training table td {
  width: 325px;
}
 
div.training hr {
  margin-top: 20px;
  margin-bottom: 20px;
}

div.training h3 {
  margin: 0;
}