Adding some new png files to supoprt alternate css

Fix css validation for media='print' stylesheet
Add alternate css file

NO VISIBLE CHANGES FOR USERS



git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@10934 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

stylesheets/lfs-xsl/chunk-slave.xsl

@@ -31,7 +31,8 @@ $Date$
   <!-- Print CSS Stylesheet -->
   <!-- The original template is in {docbook-xsl}/xhtml/docbook.xsl -->
   <xsl:template name='user.head.content'>
-    <link rel="stylesheet" href="stylesheets/lfs-print.css" type="text/css" media="print"/>
+    <link rel="stylesheet" href="../stylesheets/lfs-print.css" type="text/css" media="print"/>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
   </xsl:template>
 
   <!-- Drop some unwanted style attributes -->

stylesheets/lfs-xsl/lfs-print.css

@@ -7,3 +7,12 @@ $Date$
 .navfooter, .headerlinks {
    display: none;
 }
+
+div.navheader {
+  position: absolute;
+}
+
+div.navheader ul,
+div.navheader ul{
+  display: none;
+}