h2,h3,h4,h5,h6 {
  font-weight: bold;
  margin-top: 1em;
  margin-bottom: 1em;
}

.w-75 {
  width: 75%;
  margin-left: auto;
  margin-right: auto;
}

.authorImage {
  width: 200px;
  height: 200px;
  border-radius: 50%;
}

.authorPresentation {
  text-align: center;
}

.authorDescription {
  text-align: justify;
}