.fade-in {
    opacity: 1;
    animation-name: fadeInOpacity;
    animation-iteration-count: 1;
    animation-timing-function: ease-in;
    animation-duration: 0.3s;
}

@keyframes fadeInOpacity {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}