.owl-thumbs {
    position: relative;
    width: 100%;
    display: block;
    text-align: center;
    margin:5px 0;
}

.owl-thumb-item {
    display: inline-block;
    border: none;
    background: none;
    padding: 0;
    opacity: .6;
    margin:2px;
}

.owl-thumb-item.active {
    opacity: 1;
}

.owl-thumb-item img {
    width: auto;
    height: 50px;
}