.optical-ex {
  max-width: 1028px;
  margin-bottom: 2rem;
}

.optical-ex img {
  width: 100%;
}

.volcane {
  max-width: 1028px;
  min-height: 25rem;
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: center;
  background-image: url(../media/volcane.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  margin-bottom: 2rem;
}

.volcane-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.volcane-inner img {
  width: 25rem;
  margin: 0;
}

.volcane-inner a,
.volcane-inner a:visited {
  background-color: #4e8bed;
  color: white;
  padding: 1.5rem;
  width: 20rem;
  text-align: center;
  text-transform: uppercase;
}

.volcane-inner a:hover {
  background-color: #ff7730;
}

.volcane-inner h2 {
  color: #fff;
  font-weight: 300;
  margin: 0;
  padding: 0;
}

@media only screen and (max-width: 600px) {
  .volcane {
    flex-direction: column;
    background-image: url(../media/volcane.jpg);
    padding-bottom: 2rem;
  }
}