diff --git a/src/assets/css/src/3.utilities.flex.css b/src/assets/css/src/3.utilities.flex.css
index 0f6d5f7..76a7adf 100644
--- a/src/assets/css/src/3.utilities.flex.css
+++ b/src/assets/css/src/3.utilities.flex.css
@@ -32,4 +32,8 @@
 }
 .order-last {
   order: 9999;
-}
\ No newline at end of file
+}
+
+.flex-1 {
+  flex: 1 1 0%;
+}