@media only screen and (max-width: 850px) {
    .vertical-images {
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
    }
    
    .tilt-left-slight,
    .tilt-right-slight, 
    .tilt-left,
    .tilt-right,
    .tilt-left-much,
    .tilt-right-much {
        transform: none;
    }

    .image-frame {
        width: 90%;
        max-width: 400px;
    }

    .image-frame > .image {
        width: 100%;
        max-width: 400px;
        max-height: 400px;
    }
}