.slider h3,
.slider h5,
.portfolio h3,
.activity h3,
.clients h3,
.services h3,
.logo,
.about h3 {
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.6);
}

.brand-logo a {
  color: green;
  font-weight: bold;
}

.parallax-container {
  height: 20%;
}

.clients img {
  max-width: 150px;
  filter: drop-shadow(2px 2px 2px rgba(0, 0, 0, 0.8));
}
section {
  padding: 20px 0;
}