.section span a {
  color: #cc3333;
}
.section span {
  color: #cc3333;
}

.books-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: center;
}

.books-container img {
  height: 20rem;
}

.btn-group- {
  justify-content: flex-start;
}

h4 {
  font-size: 3.2rem;
  font-weight: 400;
  margin-bottom: 4rem;
}

p {
  font-size: 1.6rem;
  text-align: justify;
}

strong {
  font-weight: 600;
}

.container {
  color: #7a7979;
}

@media screen and (width <= 768px) {
  h4 {
    font-size: 2rem;
    margin-bottom: 3rem;
  }

  .books-container img {
    height: 20rem;
    width: auto;
  }

  .separator {
    display: block;
  }
}

@media screen and (width <= 1500px) {
  .masters-container .img-rounded {
    width: 15rem;
    height: 15rem;
  }
}