body {
  background: #d3d3d3;
}

a {
  text-decoration: none;
}

a:hover {
  text-decoration: none;
  font-weight: bold;
}

.content-img {
  background: url(../img/aulas.jpg) no-repeat center center;
  background-size: cover;
  width: 100%;
  height: 100%;
  padding: 12rem 0;
}

.section-icon {
  font-size: 4.5rem;
}

.img-right {
  background: url(../img/bg-showcase-1.jpg) no-repeat center center;
  background-size: cover;
  width: 100%;
  height: 100%;
  padding: 12rem 0;
}

.list-social {
  font-size: 2rem;
}