Index: skins/chick/main.css
===================================================================
--- skins/chick/main.css	(revision 15879)
+++ skins/chick/main.css	(working copy)
@@ -403,7 +403,8 @@
     background:#eeeeee;
     font-size: smaller;
 }
-span.diffchange { color: red; }
+ins.diffchange { color: red; text-decoration: none; }
+del.diffchange { color: red; text-decoration: none; }
 
 a.external { color: #3366bb; }
 
@@ -478,4 +479,4 @@
 
 #jump-to-nav {
   display: none;
-}
\ No newline at end of file
+}
Index: skins/monobook/main.css
===================================================================
--- skins/monobook/main.css	(revision 15879)
+++ skins/monobook/main.css	(working copy)
@@ -558,10 +558,16 @@
 	background: #eee;
 	font-size: smaller;
 }
-span.diffchange {
+ins.diffchange {
 	color: red;
 	font-weight: bold;
+	text-decoration: none;
 }
+del.diffchange {
+	color: red;
+	font-weight: bold;
+	text-decoration: none;
+}
 
 /*
 ** keep the whitespace in front of the ^=, hides rule from konqueror
Index: skins/common/common.css
===================================================================
--- skins/common/common.css	(revision 15879)
+++ skins/common/common.css	(working copy)
@@ -94,7 +94,16 @@
     background:#eeeeee;
     font-size: 94%;
 }
-span.diffchange { color: red; font-weight: bold; }
+ins.diffchange {
+	color: red;
+	font-weight: bold;
+	text-decoration: none;
+}
+del.diffchange {
+	color: red;
+	font-weight: bold;
+	text-decoration: none;
+}
 
 img { border: none; }
 img.tex { vertical-align: middle; }
@@ -383,4 +392,4 @@
 table.gallery td.galleryheader {
 	text-align: center;
 	font-weight: bold;
-}
\ No newline at end of file
+}
Index: skins/common/commonPrint.css
===================================================================
--- skins/common/commonPrint.css	(revision 15879)
+++ skins/common/commonPrint.css	(working copy)
@@ -284,5 +284,13 @@
     background:#eeeeee;
     font-size: smaller;
 }
-span.diffchange { color: silver; font-weight: bold; text-decoration: underline; }
-
+ins.diffchange {
+    color: silver;
+    font-weight: bold;
+    text-decoration: underline;
+}
+del.diffchange {
+    color: silver;
+    font-weight: bold;
+    text-decoration: underline;
+}
Index: skins/simple/main.css
===================================================================
--- skins/simple/main.css	(revision 15879)
+++ skins/simple/main.css	(working copy)
@@ -242,7 +242,8 @@
     background-color: #f8ffaa;
 }
 
-span.diffchange { background-color: #FFCDF3; }
+ins.diffchange { background-color: #FFCDF3; text-decoration: none; }
+del.diffchange { background-color: #FFCDF3; text-decoration: none; }
 .autocomment { color:  grey; }
 #pagehistory span.user {
     margin-left: 1.4em;
Index: includes/DifferenceEngine.php
===================================================================
--- includes/DifferenceEngine.php	(revision 15879)
+++ includes/DifferenceEngine.php	(working copy)
@@ -1525,9 +1525,12 @@
 
 	function _flushGroup ($new_tag) {
 		if ($this->_group !== '') {
-			if ($this->_tag == 'mark')
-				$this->_line .= '<span class="diffchange">' .
-					htmlspecialchars ( $this->_group ) . '</span>';
+			if ($this->_tag == 'ins')
+				$this->_line .= '<ins class="diffchange">' .
+					htmlspecialchars ( $this->_group ) . '</ins>';
+			elseif ($this->_tag == 'del')
+				$this->_line .= '<del class="diffchange">' .
+					htmlspecialchars ( $this->_group ) . '</del>';
 			else
 				$this->_line .= htmlspecialchars ( $this->_group );
 		}
@@ -1629,7 +1632,7 @@
 			if ($edit->type == 'copy')
 				$orig->addWords($edit->orig);
 			elseif ($edit->orig)
-				$orig->addWords($edit->orig, 'mark');
+				$orig->addWords($edit->orig, 'del');
 		}
 		$lines = $orig->getLines();
 		wfProfileOut( $fname );
@@ -1645,7 +1648,7 @@
 			if ($edit->type == 'copy')
 				$closing->addWords($edit->closing);
 			elseif ($edit->closing)
-				$closing->addWords($edit->closing, 'mark');
+				$closing->addWords($edit->closing, 'ins');
 		}
 		$lines = $closing->getLines();
 		wfProfileOut( $fname );
Index: includes/normal/RandomTest.php
===================================================================
--- includes/normal/RandomTest.php	(revision 15879)
+++ includes/normal/RandomTest.php	(working copy)
@@ -68,8 +68,8 @@
 	$diffs = new Diff( $ota, $nta );
 	$formatter = new TableDiffFormatter();
 	$funky = $formatter->format( $diffs );
-	preg_match_all( '/<span class="diffchange">(.*?)<\/span>/', $funky, $matches );
-	foreach( $matches[1] as $bit ) {
+	preg_match_all( '/<(ins|del) class="diffchange">(.*?)<\/span>/', $funky, $matches );
+	foreach( $matches[2] as $bit ) {
 		$hex = bin2hex( $bit );
 		echo "\t$hex\n";
 	}