[gtk+] Update CSS docs regarding type names

[Matthias Clasen <matthiasc src gnome org>]

commit 2d1f1f3b81dcbdf2da54bb501a28f465bab4b1c3
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 6 09:28:51 2016 +0100

    Update CSS docs regarding type names
    
    We no longer use type names at all.

 docs/reference/gtk/css-overview.xml |   11 +++++------
 1 files changed, 5 insertions(+), 6 deletions(-)
---
diff --git a/docs/reference/gtk/css-overview.xml b/docs/reference/gtk/css-overview.xml
index 40e2687..56cf845 100644
--- a/docs/reference/gtk/css-overview.xml
+++ b/docs/reference/gtk/css-overview.xml
@@ -168,8 +168,7 @@ button, entry {
     </para>
 
     <para>
-      Typically widgets have one or more CSS nodes with element names (GTK+ falls
-      back to using the widget type if a widget has no element name) and style
+      All widgets have one or more CSS nodes with element names and style
       classes. When style classes are used in selectors, they have to be prefixed
       with a period. Widget names can be used in selectors like IDs. When used
       in a selector, widget names must be prefixed with a &num; character.
@@ -214,9 +213,9 @@ notebook > entry {
     </example>
 
     <example>
-      <title>Theme any widget within a GtkBin</title>
+      <title>Theme any widget within a GtkBox</title>
       <programlisting><![CDATA[
-GtkBin * {
+box * {
   font: Sans 20
 }
 ]]></programlisting>
@@ -252,7 +251,7 @@ label#title-label {
     <example>
       <title>Theme the entry of a GtkSpinButton</title>
       <programlisting><![CDATA[
-spinbutton.entry {
+spinbutton entry {
   color: 900185;
 }
 ]]></programlisting>
@@ -368,7 +367,7 @@ checkbutton:indeterminate {
             <entry>E</entry>
             <entry>any node with name E</entry>
             <entry><ulink url="http://www.w3.org/TR/css3-selectors/#type-selectors";>CSS</ulink></entry>
-            <entry>GTK+ uses the type name of the widget if no CSS name has been set</entry>
+            <entry></entry>
           </row>
           <row>
             <entry>E.class</entry>