.os_slider_wrapper #osbx-thumbnail {
    margin-top: -30px;
    text-align: center;
}
.os_slider_wrapper #osbx-thumbnail a {
    margin: 0 3px;
    border: none;
    display: inline-block;
}
.os_slider_wrapper #osbx-thumbnail a img {
    border: 1px solid #ccc;
    padding: 3px;
}
.os_slider_wrapper #osbx-thumbnail a:hover img, 
.os_slider_wrapper #osbx-thumbnail a.active img {
    
    border: 1px solid #5280dd;
}