diff --git a/resources/templates/html.css b/resources/templates/html.css
index cf04ea3f4a..ef81fe5390 100644
--- a/resources/templates/html.css
+++ b/resources/templates/html.css
@@ -80,14 +80,6 @@ blockquote[type=cite] {
   border-width: thin;
 }
 
-span[_moz_quote=true] {
-  color: blue;
-}
-
-pre[_moz_quote=true] {
-  color: blue;
-}
-
 h1 {
   display: block;
   font-size: 2em;
@@ -129,15 +121,7 @@ h6 {
   margin: 2.33em 0;
 }
 
-listing {
-  display: block;
-  font-family: monospace;
-  font-size: medium;
-  white-space: pre;
-  margin: 1em 0;
-}
-
-xmp, pre, plaintext {
+pre {
   display: block;
   font-family: monospace;
   white-space: pre;
@@ -166,8 +150,8 @@ table[align="right"] {
 table[rules]:not([rules="none"]) {
   border-collapse: collapse;
 }
-   
-/* caption inherits from table not table-outer */  
+
+/* caption inherits from table not table-outer */
 caption {
   display: table-caption;
   text-align: center;
@@ -219,10 +203,10 @@ table > tr {
   vertical-align: middle;
 }
 
-td { 
+td {
   display: table-cell;
   vertical-align: inherit;
-  text-align: inherit; 
+  text-align: inherit;
   padding: 1px;
 }
 
@@ -418,4 +402,3 @@ img, object, svg|svg {
     width: auto;
     height: auto;
 }
-