diff --git a/sites.md b/sites.md
index 0c8ccc1..038e1e6 100644
--- a/sites.md
+++ b/sites.md
@@ -71,6 +71,7 @@
 * http://maxogden.github.io/screencat/
 * http://numenta.com
 * https://windtoday.co
+* https://crunchbangplusplus.org
 * http://claudio.netlify.com
 * http://devday-ar.com
 * https://zoneii.github.io
@@ -78,3 +79,6 @@
 * http://jonshort.me
 * https://nuxtjs.org
 * http://devgame.surge.sh
+* https://scottmathson.me
+* https://podviaznikov.com
+* https://hero-patterns.lowmess.com
diff --git a/src/_utilities.css b/src/_utilities.css
index 74fc9c9..6dc7c55 100644
--- a/src/_utilities.css
+++ b/src/_utilities.css
@@ -19,11 +19,16 @@
   margin-left: auto;
 }
 
+.mr-auto { margin-right: auto; }
+.ml-auto { margin-left:  auto; }
+
 @media (--breakpoint-not-small){
   .center-ns {
     margin-right: auto;
     margin-left: auto;
   }
+  .mr-auto-ns { margin-right: auto; }
+  .ml-auto-ns { margin-left:  auto; }
 }
 
 @media (--breakpoint-medium){
@@ -31,6 +36,8 @@
     margin-right: auto;
     margin-left: auto;
   }
+  .mr-auto-m { margin-right: auto; }
+  .ml-auto-m { margin-left:  auto; }
 }
 
 @media (--breakpoint-large){
@@ -38,4 +45,6 @@
     margin-right: auto;
     margin-left: auto;
   }
+  .mr-auto-l { margin-right: auto; }
+  .ml-auto-l { margin-left:  auto; }
 }