.wp-paginate.wpp-modern-grey span.page.current {
    opacity: 1;
    background: #00809D;
    padding: 8px 16px;
    color: #fff;
}
.wp-paginate.wpp-modern-grey a, .wp-paginate.wpp-modern-grey .current {
    background: #fff;
    border: 1px solid #efecee;
    border-radius: 4px;
    color: #000;
    padding: 8px 16px;
    font-size: 14px;
}