@media all and (max-width: 980px) {
/*** wrap row in a flex box ***/
.custom_row {
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
-webkit-flex-wrap: wrap; /* Safari 6.1+ */
flex-wrap: wrap;
	flex-direction: column-reverse;
}
/*** add margin to last column ***/
.custom_row:last-child .et_pb_column:last-child {
margin-bottom: 30px;
}
 
}