.instance {
  margin-bottom: 3rem;
}

.instance .heading {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.instance .heading h2 {
  width: 100%;
  text-align: center;
}

.instance img {
  width: 4rem;
  margin: 1rem auto;
}

.instance.timonerie img {
  width: 4.5rem;
}

.instance.cse img {
  width: 6rem;
}

.instance.vie-coop img {
  width: 5rem;
}