.top-title-1 {
  top: 40%;
  left: 30%;
}

.top-title-2 {
  top: 80%;
  left: 50%;
  width: 60%;
  background: linear-gradient(to right, lightslategray, lightgray); 
}

@media (max-width: 768px) {
  .top-title-2 {
    top: 80%;
    left: 50%;
    width: 95%;
    background: linear-gradient(to right, lightslategray, lightgray); 
  }
}

/* animation class */
.fade-in {
  opacity: 0;
  visibility: hidden;
  transition: all 1.5s;
  transform: translateY(150px);
}

.fade-in.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}