.image-gallery .negative-margin {
    margin: 0px -20px;
}
.image-gallery .content-padding {
    padding: 0px 20px;
    margin-bottom: 40px;
}

.image-gallery .image-4by3 {
    cursor: default;
    transition: ease all .3s;
}

.image-gallery .zoom_image .image-4by3 {
    cursor: pointer;
}

.image-gallery .zoom_image:hover img {
    min-width: 103%;
    min-height: 103%;
    height: 103%;
    width: 103%;
}
@media(max-width: 991.98px){
    .image-gallery .negative-margin {
        margin: 0px -15px;
    }
    .image-gallery .content-padding {
        padding: 0px 15px;
        margin-bottom: 30px;
    }
}
@media(max-width: 575px){
    .image-gallery .content-padding {
        margin-bottom: 45px;
    }
}