GravTheme/css/animated-image.css

.animated-image {
    display: grid;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

.animated-image > * {
    grid-column: 1;
    grid-row: 1;
    position: relative;
    transition: all 0.5s;
}

.animated-image img {
    top: 0;
    z-index: 50;
}

.animated-image div {
    background-size: contain;
    background-repeat: no-repeat;
    width: 100%;
    height: 0;
}

.animated-image a {
    top: 100%;
    text-decoration: none;
    color: rgb(243, 243, 243);
    font-weight: bold;
}

.animated-image:hover img {
    top: -100% !important;
}

.animated-image:hover a {
    top: 0;
}