// JS
jQuery('.jk-job-filters-wrapper').closest('.et_pb_row_1').css('width','100%');

// CSS
@media screen and (max-width: 980px) {
  .job_listings {
    margin-top: -72px;
  }
  .jk-job-filters-wrapper {
    margin: 0px !important;
  }
  .jk-job-filters-wrapper .job_filters {
   width: 100% !important;
  }
}