diff --git a/muk_web_utils/static/src/scss/mixins.scss b/muk_web_utils/static/src/scss/mixins.scss
new file mode 100644
index 0000000..e766c46
--- /dev/null
+++ b/muk_web_utils/static/src/scss/mixins.scss
@@ -0,0 +1,24 @@
+/**********************************************************************************
+*
+* Copyright (C) 2017 MuK IT GmbH
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Affero General Public License as
+* published by the Free Software Foundation, either version 3 of the
+* License, or (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with this program. If not, see .
+*
+**********************************************************************************/
+
+@mixin mk-flex ($grow: 1, $shrink: 1, $basis: auto, $direction: column) {
+ display: flex;
+ flex: $grow $shrink $basis;
+ flex-direction: $direction;
+}
\ No newline at end of file
diff --git a/muk_web_utils/template/assets.xml b/muk_web_utils/template/assets.xml
index af9b405..14c716d 100644
--- a/muk_web_utils/template/assets.xml
+++ b/muk_web_utils/template/assets.xml
@@ -30,6 +30,7 @@
+