.slider h3,
.slider h5,
.clients h3 {
  text-shadow: 3px 3px 3px rgba(27, 5, 151, 0.5);
}

.parallax-container {
  height: 20%;
}

.parallax img {
  filter: grayscale(1);
  opacity: 0.5 !important;
}

.clients img {
  margin-top: 50px;
  margin-bottom: 50px;
  max-width: 150px;
  filter: drop-shadow(2px 2px 2px rgba(0, 0, 0, 0.5));
}

section,
footer {
  padding: 20px 0;
}