remove row width 100%

style/mixins/grid.less

@@ -10,7 +10,6 @@
 
 .make-row(@gutter: @grid-gutter-width) {
   position: relative;
-  width: 100%;
   margin-left: (@gutter / -2);
   margin-right: (@gutter / -2);
   height: auto;
@@ -69,4 +68,4 @@
 
 .make-grid() {
   .loop-grid-columns(@grid-columns);
-}
+}