@media screen and (max-width:700px) {
    .ox_tbl_list .mod,
    .ox_tbl_list .del {display:none;}
}

@media screen and (max-width:600px) {
    .ox_tbl_list .name {display:none;}

    #ox_formmail_reply .ox_tbl_view th:before {display:none;}
}

@media screen and (max-width:400px) {
    .ox_tbl_list .date {display:none;}
}