modifs flexbox

css/knacss-unminified.css

@@ -320,60 +320,51 @@ http://www.alsacreations.com/tuto/lire/1493-css3-flexbox-layout-module.html
 */
 .flexbox,
 .flexbox-h {
-  display: -webkit-box;
   display: -webkit-flex;
   display: -ms-flexbox;
   display: flex;
   -webkit-flex-wrap: wrap;
       -ms-flex-wrap: wrap;
           flex-wrap: wrap;
-  -webkit-box-orient: horizontal;
-  -webkit-box-direction: normal;
   -webkit-flex-direction: row;
       -ms-flex-direction: row;
           flex-direction: row;
 }
 .flexbox-v {
-  -webkit-box-orient: vertical;
-  -webkit-box-direction: normal;
   -webkit-flex-direction: column;
       -ms-flex-direction: column;
           flex-direction: column;
 }
 .flexitem-fluid {
-  -webkit-box-flex: 1;
   -webkit-flex: 1;
       -ms-flex: 1;
           flex: 1;
 }
 .flexitem-first {
-  -webkit-box-ordinal-group: 0;
   -webkit-order: -1;
       -ms-flex-order: -1;
           order: -1;
 }
 .flexitem-medium {
-  -webkit-box-ordinal-group: 1;
   -webkit-order: 0;
       -ms-flex-order: 0;
           order: 0;
 }
 .flexitem-last {
-  -webkit-box-ordinal-group: 2;
   -webkit-order: 1;
       -ms-flex-order: 1;
           order: 1;
 }
+.flexitem-center {
+  margin: auto;
+}
 /* ---------------------------------- */
 /* ==Grids                            */
 /* ---------------------------------- */
 [class*="grid-"] {
-  display: -webkit-box;
   display: -webkit-flex;
   display: -ms-flexbox;
   display: flex;
-  -webkit-box-orient: horizontal;
-  -webkit-box-direction: normal;
   -webkit-flex-direction: row;
       -ms-flex-direction: row;
           flex-direction: row;
@@ -383,14 +374,13 @@ http://www.alsacreations.com/tuto/lire/1493-css3-flexbox-layout-module.html
   margin-left: -1em;
 }
 [class*="grid-"] > * {
-  -webkit-box-flex: 0;
   -webkit-flex: 0 0 auto;
       -ms-flex: 0 0 auto;
           flex: 0 0 auto;
   display: block;
   /* IE fix */
   border-left: 1em solid transparent;
-  background-clip: padding-box !important;
+  background-clip: padding-box !important
   /* no background on border */
 }
 .grid-2 > * {
@@ -1819,9 +1809,3 @@ img.wp-smiley {
 .gallery-caption {
   display: block;
 }
-/* ----------------------------- */
-/* ==own stylesheet              */
-/* ----------------------------- */
-/* Here should go your own CSS styles */
-/* You can also link them with a LESS @import */
-/* @import "my-styles.less"; */