[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-duration: 0.4s;
}
[data-aos].aos-animate {
  opacity: 1;
}
[data-aos="fade-up"] {
  transform: translateY(20px);
}
[data-aos="fade-up"].aos-animate {
  transform: translateY(0);
}