I have such code and somehow ease-out doesn't seem to work. Is there anything with animation property that prevents it from working?
.fade-in-header-button
opacity: 0
animation: slideInFromBottom .25s ease-out .25s 1 forwards
@keyframes slideInFromBottom
0%
opacity: 0
transform: translateY(150%)
100%
opacity: 1
transform: translateY(0)