display:flex

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;             /* NEW, Spec - Opera 12.1, Firefox 20+ */
-webkit-box-flex: 1;      /* OLD - iOS 6-, Safari 3.1-6 */
-moz-box-flex: 1;         /* OLD - Firefox 19- */
-webkit-flex: 1;          /* Chrome */
-ms-flex: 1;              /* IE 10 */
flex: 1;                  /* NEW, Spec - Opera 12.1, Firefox 20+ */