#calculator select[name="birthy"]{
  padding:0.3em;
}

#calculator select[name="birthm"]{
  padding:0.3em;
}

#calculator select[name="birthd"]{
  padding:0.3em;
}

#calculator select[name="retirementy"]{
  padding:0.3em;
}

#calculator select[name="retirementm"]{
  padding:0.3em;
}

#calculator select[name="retirementd"]{
  padding:0.3em;
}