#vypocet label { display: flex; flex-wrap: wrap; }

#vypocet input[type="number"] {
  padding-right: 3px;
  font: inherit; /* zvetsi font a srovna velikost se selectem */
}

#vypocet > p > label > span {
  width: 23em;
  align-content: center;
}

#vypocet span.vypocet-label {
  display: inline-block;
  width: 18em;
  margin-right: 15px;
}

#vypocet-result {
  font-size: 120%;
}