.qb_additional { width: 100%; }
.qb_layout_body .qb_wrap { width:100%;}

@media screen and (min-width: 768px) {
  .qb_layout_body .qb_wrap { width:100%;}
  .qb_layout_header .qb_wrap {padding-left: 190px; width: 750px; margin: 0 auto; }
  .qb-children-age-selector { left: auto; right: 0; width: 38%; }

  .qb_rooms_select { display: block; width: 16.6%; }
  .qb_person_room_selector { width: 33.4%; }
  .qb_person_select { width: 50%; }
  .qb_room_changer { display: block; width: 50%; }

  .qb_person_selector .qb_smaller_room_select { height: 64px; }
  .qb_person_selector .qb_input_smaller_room_select { height: 46px; }
  .qb_person_selector .count { height: 100%; font-size: 2em; line-height: 46px; }
  .qb_additional { width: 50%; }
  .qb_continue { width: 50%; }
  .qb_continue .continue { width: 100%; text-align: left; }
}

@media screen and (min-width: 991px) {
  .qb_layout_body .qb_wrap { width:100%;}
  .qb_layout_header .qb_wrap { padding-left: 226px; width: 940px; margin: 0 auto; }
}

@media screen and (min-width: 1200px) {
  .qb_layout_body .qb_wrap { width:100%;}
  .qb-children-age-selector { left: 66%; width: 100%; }

  .qb_layout_header .qb_wrap { padding-left: 270px; width: 881px; margin: 0 auto; box-sizing: content-box; }

  .qb_date_select { width: 50%; }
  .qb_rooms_select { width: 33%; }
  .qb_person_room_selector { width: 66.6%; }
  .qb_additional { width: 100%; }
  .qb_continue { width: 22%; padding-left: 7px; }

  .qb_section { border-right: 1px solid #ebeeef; padding: 0 5px; position: relative; float: left; }

  .qb_section.section_date { width: 22%; }
  .qb_section.section_persons { width: 33%; }
  .qb_section.section_additional { width: 22%; }
}