[ticket/15086] Refactoring and moving to icons.css

Per hanakin's github suggestions some refactoring and moved icons into
icons.css for conistency. The RTL icons remain in bidi.css to keep all
the RTL content in a consistant location.

A number of places where setting something to zero have been removed.

PHPBB3-15086

phpBB/styles/prosilver/theme/bidi.css

@@ -502,15 +502,13 @@ li.breadcrumbs span:first-child > a {
 
 .rtl blockquote cite {
 	/* Username/source of quoter */
-	margin-right: 0;
 	margin-left: 0;
 }
 
 .rtl blockquote cite:before, .uncited:before {
-	/* Font Awesome quote-right */
-	content: '\f10e';
 	padding-right: 0;
 	padding-left: 5px;
+	content: '\f10e'; /* Font Awesome quote-right */
 }
 
 .rtl blockquote .codebox {

phpBB/styles/prosilver/theme/content.css

@@ -466,26 +466,14 @@ blockquote cite {
 	/* Username/source of quoter */
 	font-style: normal;
 	font-weight: bold;
-	margin-left: 0;
 	display: block;
 	font-size: 0.9em;
 }
 
-blockquote cite:before, .uncited:before {
-	/* Font Awesome quote-left */
-	content: '\f10d';
-	font-family: FontAwesome;
-	padding-right: 5px;
-}
-
 blockquote cite cite {
 	font-size: 1em;
 }
 
-blockquote.uncited {
-	padding-top: 0;
-}
-
 blockquote cite > div {
 	float: right;
 	font-weight: normal;

phpBB/styles/prosilver/theme/icons.css

@@ -85,3 +85,20 @@
     line-height: .9;
     height: 12px;
 }
+
+
+blockquote cite:before, .uncited:before {
+	-webkit-font-smoothing: antialiased;
+	-mos-osx-font-smoothing: grayscale;
+	font-family: FontAwesome;
+	font-size: 14px;
+	font-weight: normal;
+	font-style: normal;
+	font-variant: normal;
+	line-height: 1;
+	text-rendering: auto;
+	display: inline-block;
+	padding-right: 5px;
+	content: '\f10d'; /* Font Awesome quote-left */
+}
+