.slider {
    width: 100%;
    margin: 30px auto;
}

.slick-slide {
    margin: 0px 20px;
}

.slick-slide img {
    width: 100%;
}

.slick-prev:before,
.slick-next:before {
    color: black;
}


.slick-slide {
    transition: all ease-in-out .3s;
    opacity: 1;
}

.slick-active {
    opacity: 1;
}

.slick-current {
    opacity: 1;
}

@media only screen and (min-width: 680px) {
    .flex_slider{
    position: fixed;
    bottom: -35px;
    width: 75%;
    align-items: center;
    text-align: center;
    padding-left: 25px;
    }
}