div.parent {
  display: -webkit-box;
  display: -moz-box;
  display: box;
  -webkit-box-align: start;
  -moz-box-align: start;
  box-align: start;
  -webkit-box-orient: horizontal;
  -moz-box-orient: horizontal;
  box-orient: horizontal;
  -webkit-box-pack: start;
  -moz-box-pack: start;
  box-pack: start; }

div.parent > div.child {
  -webkit-box-flex: 2;
  -moz-box-flex: 2;
  box-flex: 2; }

div.parent {
  display: -webkit-box;
  display: -moz-box;
  display: box;
  -webkit-box-orient: horizontal;
  -moz-box-orient: horizontal;
  box-orient: horizontal;
  -webkit-box-pack: center;
  -moz-box-pack: center;
  box-pack: center;
  -webkit-box-align: stretch;
  -moz-box-align: stretch;
  box-align: stretch;
  display: -webkit-box;
  display: -moz-box;
  display: box;
  -webkit-box-orient: vertical;
  -moz-box-orient: vertical;
  box-orient: vertical;
  -webkit-box-pack: start;
  -moz-box-pack: start;
  box-pack: start;
  -webkit-box-align: stretch;
  -moz-box-align: stretch;
  box-align: stretch; }
