.slider {
    margin: 0px -15px;
}

.slide {
    margin: 0px 15px;
}

.slick-prev,
.slick-next {
    top: unset;
    left: unset;
    right: unset;
    bottom: unset;
}

.slick-prev {
    top: -40px;
    right: 75px;
}

.slick-next {
    top: -40px;
    right: 35px;
}

.slick-prev:before {
    color: limegreen;
    font-size: 40px;
}

.slick-next:before {
    color: limegreen;
    font-size: 40px;
}

.cover-image {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 700px;
    background-size: cover;
    background-position: center center;
    position: relative;
}

    .cover-image:before {
        display: block;
        position: absolute;
        background: rgba(0,0,0,0.3);
        height: 100%;
        width: 100%;
        top: 0;
        left: 0;
        content: "";
    }

    .cover-image .overlay {
        position: relative;
        text-shadow: 0px 3px 5px rgba(0,0,0,0.7);
    }
    .cover-image .overlay .header img {
        width: 75%;
    }

    .cover-image .overlay .not-header {
        font-size: 50px;
        color: white;
    }

@media screen and (max-width: 640px) {
    .cover-image {
        height: 400px;
        background-position: center center;
    }
    .cover-image .overlay .header {
        line-height: 115px;
    }

    .cover-image .overlay .not-header {
        font-size: 32px;
    }
    .cover-image .overlay .header img {
        width: 75%;
        max-width: 75%;
        line-height: 30px;
    }
}