ul.pagination {
    display: flex;
    list-style: none;
}

ul.pagination li { padding: 0; border: 1px solid #ddd; line-height: 1.8; margin: 0 5px; font-size: 13px; border-radius: 3px; width: 25px; height: 25px; text-align: center; color: #15919c; background: #fff; cursor: pointer;}
ul.pagination li:hover, ul.pagination li.active { border: 1px solid #15919c; background: #15919c; color:#fff;}