diff --git a/themes/grid/source/css/common.less b/themes/grid/source/css/common.less
index 0ec8a10..3899901 100644
--- a/themes/grid/source/css/common.less
+++ b/themes/grid/source/css/common.less
@@ -28,6 +28,12 @@
         &.cm-@{key}-@{media} {
             align-content: @value;
         }
+        .js-@{key}-@{media} {
+            justify-self: @value;
+        }
+        .ji-@{key}-@{media} {
+            justify-items: @value;
+        }
     });
     @cross-axis-align: {
         start: flex-start;