.owl-carousel{
    position:relative;
}
.owl-next{
    position:absolute;
    right: 10px;
    top: 37%;
    border: 1px solid #888888;
    background-color: lightgray;
    width:40px;
    height: 40px;
}
.owl-prev{
    position:absolute;
    left: 10px;
    top:37%;
    border: 1px solid #888888;
    background-color: lightgray;
    width:40px;
    height: 40px;
}

.owl-prev span, .owl-next span  {
    font-size: 26px;
    font-weight: bold;
    background-color: rgba(256,256, 256, 0.5);
    border-radius: 12px;  
    display: block;  
    margin-top: auto;
    margin-bottom: auto;
}