/* public */

.clearfix::before,
.clearfix::after {
  clear: both;
  content: "";
  display: block;
  margin: 0;
  padding: 0;
  font-size: 0;
  height: 0;
  line-height: 0;
  visibility: hidden;
}

.clearfix {
  *zoom: 1;
}

.box {
  display: box;
  /* OLD - Android 4.4- */
  display: -webkit-box;
  /* OLD - iOS 6-, Safari 3.1-6 */
  display: -moz-box;
  /* OLD - Firefox 19- (buggy but mostly works) */
  display: -ms-flexbox;
  /* TWEENER - IE 10 */
  display: -webkit-flex;
  /* NEW - Chrome */
  display: flex;
}