.flexslider {
    margin: 0 0 1rem;
}
.flexslider .slides img {
    width: auto;
    margin-left: auto;
    margin-right: auto;
}
@media screen and (max-width: 767px) {
.flexslider .slides img {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}
}