#title_div {
  padding-top: 20px;
  padding-bottom: 20px;
  display: flex;
  align-items:center;
}

#f3calcform {
  background-color: #F7F7F7;
  padding: 40px;
  border-style: solid;
  border-width: 1px;
  border-color: #D4D4D5;
  border-radius: 5px;
}

#calc_div {
  padding-bottom: 20px;
}

#results_div {
  background-color: #fffa00;
  padding: 40px;
  border-style: solid;
  border-width: 1px;
  border-color: #D4D4D5;
  border-radius: 5px;
  margin-bottom: 20px;
  display: none;
}

#results_table_div {
  padding-bottom: 20px;
}

#challenge_div {
  padding-bottom: 20px;
}

#references_div {
  padding-bottom: 20px;
}

.error {
  color: red !important;
}

.table_def {
  font-weight: normal;
  font-style: italic;
}