Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 5882)
+++ /CKEditor/trunk/CHANGES.html	(revision 5883)
@@ -87,4 +87,5 @@
 		<li><a href="http://dev.ckeditor.com/ticket/6178">#6178</a> : [WebKit] Inserting elements by code was failing if the editor didn't receive the focus first.</li>
 		<li><a href="http://dev.ckeditor.com/ticket/6179">#6179</a> : [WebKit] The Image dialog was not working if the editor didn't receive the focus first.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/4657">#4657</a> : [Opera] Styles where not working with collapsed selections.</li>
 		<li>Updated the following language files:<ul>
 			<li><a href="http://dev.ckeditor.com/ticket/6246">#6246</a> : Chinese Simplified;</li>
Index: /CKEditor/trunk/_source/plugins/selection/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/selection/plugin.js	(revision 5882)
+++ /CKEditor/trunk/_source/plugins/selection/plugin.js	(revision 5883)
@@ -1135,6 +1135,8 @@
 					// element, we must add something to it otherwise the caret
 					// will not be visible.
+					// In Opera instead, the selection will be moved out of the
+					// element. (#4657)
 					if ( range.collapsed &&
-						( CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 ) &&
+						( CKEDITOR.env.opera || ( CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 ) ) &&
 						startContainer.type == CKEDITOR.NODE_ELEMENT &&
 						!startContainer.getChildCount() )