.pierres-de-naissance{font-family:Arial,sans-serif;width:95%;margin:0 auto;padding:20px;background-color:#f1f1f1;border-radius:25px}.pierres-de-naissance select{display:inline-flex;align-items:center;justify-content:center;height:40px;border:1px solid #999;background-color:#fff;border-radius:5px}.pierres-de-naissance button{display:inline-flex;align-items:center;justify-content:center;height:40px;text-align:center}.pierres-de-naissance .resultat{font-size:1.2em;font-weight:700;margin-top:20px;margin-bottom:20px}small{font-size:1em}