@media screen and (max-width: 640px) {.c-list_table th {
    width: 30%;
    display:table-cell;
    border-bottom: 0px solid #999;
}}

@media screen and (max-width: 640px) {.c-list_table td {
    display:table-cell;
}}


.c-list_table th {
    border-right: 1px solid #999;
    width: 30%;
}