.owl-carousel {
    position: relative;
}
.owl-dots {
    margin-top: 10px;
    text-align: center;
}
.owl-dot span {
    background-color: black;
    border-radius: 50%;
    display: inline-block;
    height: 8px;
    margin: 0 4px;
    width: 8px;
}  
.owl-nav {
    font-size: 40px;
}
.owl-carousel .owl-nav .owl-prev {
    bottom: -15px;
    left: 0;
    position: absolute;
}
.owl-carousel .owl-nav .owl-next {
    bottom: -15px;
    right: 0;
    position: absolute;
}
.item {
            background-color: lightgray;
            height: 400px;
            position: relative;
            text-align: center;
            width: 100%;
}
.item img {
    display: inline-block !important;
    height: 100%;
    width: auto !important;
}       
.caption {
    background-color: rgba(0, 0, 0, 0.8);
    bottom: 0;
    color: white;
    font-size: 14px;
    left: 0;
    padding: 10px;
    position: absolute;
    width: 100%;
}
.caption a {
    color: red;
}