diff --git a/app/assets/stylesheets/common.scss b/app/assets/stylesheets/common.scss
index 0ea8949a7..cb96fa998 100644
--- a/app/assets/stylesheets/common.scss
+++ b/app/assets/stylesheets/common.scss
@@ -35,27 +35,6 @@ select,
 textarea,
 body { font: #{$typeheight}/#{$lineheight} "Helvetica Neue",Arial,sans-serif; }
 
-abbr, acronym {
-  text-decoration: underline dotted;
-  cursor: help;
-}
-
-strong {
-  font-weight: bold;
-}
-
-/* Micro Clearfix | Details: http://nicolasgallagher.com/micro-clearfix-hack/ */
-
-.clearfix:before,
-.clearfix:after {
-    content: " ";
-    display: table;
-}
-
-.clearfix:after {
-    clear: both;
-}
-
 .fillL { background-color: white; }
 
 /* Default rules for the body of every page */