.formulaire-demander-partie {
  display: flex;
  flex-direction: column;
  flex-grow: 0;
}

.formulaire-demander-partie legend {
  margin: 0 auto;
}

.formulaire-demander-partie * {
  display: flex;
}

.formulaire-demander-partie fieldset {
  gap: 10px;
  flex-direction: row;
  justify-content: center;
  align-items: center;
}