#wrapper {
  display: grid;
  gap: 1rem;
}

#input {
  width: calc(100% - 5rem);
}

#output {
  height: 10rem;
}

fieldset table {
  border-collapse: collapse;
}

fieldset th, fieldset td {
  min-width: 52px;
  width: 52px;
  height: 56px;
  line-height: 1rem;
  text-align: center;
  border: 1px solid #333;
}

fieldset th {
  color: #333;
  background: none;
  font-weight: bold;
  font-size: 16px;
  border: none;
}

fieldset td {
  opacity: 0.1;
}

td.used {
  opacity: 1;
}

fieldset table, fieldset tbody, fieldset tr, .blank {
  border: none;
}

#rare-earth {
  margin: 10px 130px;
}

.rare-earth, #rare-earth td {
  background: #eee;
}

.nonmetal {
  background: #fee;
}

.typical {
  background: #efe;
}

.transition {
  background: #eef;
}

td span:nth-child(odd) {
  font-size: 8px;
}

td span:nth-child(2) {
  font-size: 20px;
}

td span:nth-child(2)::before, td span:nth-child(2)::after {
  white-space: pre-wrap;
  content: "\A";
}