diff --git a/src/_utilities.css b/src/_utilities.css
index fbb6ea1..8b8951b 100644
--- a/src/_utilities.css
+++ b/src/_utilities.css
@@ -3,17 +3,12 @@
    UTILITIES
 
    Media Query Extensions:
-     -ns = small
+     -s = small
      -m  = medium
      -l  = large
 
 */
 
-/* Equivalent to .overflow-y-scroll */
-.overflow-container {
-  overflow-y: scroll;
-}
-
 .center {
   margin-right: auto;
   margin-left: auto;
@@ -23,12 +18,12 @@
 .ml-auto { margin-left:  auto; }
 
 @media (--breakpoint-small){
-  .center-ns {
+  .center-s {
     margin-right: auto;
     margin-left: auto;
   }
-  .mr-auto-ns { margin-right: auto; }
-  .ml-auto-ns { margin-left:  auto; }
+  .mr-auto-s { margin-right: auto; }
+  .ml-auto-s { margin-left:  auto; }
 }
 
 @media (--breakpoint-medium){