.fadein_up { animation: fadeInUp 1.5s ease; } @keyframes fadeInUp { from { opacity: 0; transform: translateY(50px); } to { opacity: 1; transform: translateY(0); } } .fadein_down { animation: fadeInDown 0.4s ease; } @keyframes fadeInDown { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }