* {
  margin: 0;
  padding: 0;
  font-family: Verdana;
}
.center, tr, h1 {
  text-align: center;
}
table {
  margin-left: 50px;
  border: 2px solid black;
  width: 310px;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}
td {
  line-height: 1.5rem;
}
h1 {
  margin: 1.5rem 0 1.5rem 0;
}