#page_navigation a {
    border: 1px solid gray;
    color: #000;
    margin: 2px;
    padding: 7px 13px;
    border-radius: 20px;
    text-decoration: none;
}
#page_navigation a:hover{
    background: none repeat scroll 0 0 #009DDD;
    color: #fff !important;
}
.active_page {
    background: none repeat scroll 0 0 #009DDD;
    color: #fff !important;
}