/*dieu huong*/
.nav_pre_next {
    float: left;
    width: 100%;margin-bottom:10px;
}
.pager_pre_next {
    list-style: none;
    display: grid;
    grid-gap: 10px;
    padding: 0;
    margin: 0;
    grid-template-columns: repeat(auto-fill,minmax(49%,1fr));
}
.previous {
    float: left;
    background: #009fe1;
    padding: 5px 10px;
}
.pager_pre_next>li>span, .pager_pre_next>li>a {
    color: #fff;margin:0px 2px;
}
.pager_pre_next>li>span, .pager_pre_next>li>a:hover{font-style:italic;}
.next {
    float: right;
    background: #009fe1;
    padding: 5px 10px;
}
/*end dieu huong*/