--- reveal.css.orig	2017-09-20 21:41:43.190984695 +0200
+++ reveal.css	2017-09-21 17:42:07.671682270 +0200
@@ -1,3 +1,8 @@
+/*
+ *  patched by: /usr/share/hdm-docbook-xsl/CustomLayer/webhelp/reveal.css.patch 
+ *  source file: /usr/share/reveal.js/css/reveal.css
+ */
+
 /*!
  * reveal.js
  * http://lab.hakim.se/reveal-js
@@ -26,7 +31,7 @@
   border: 0;
   font-size: 100%;
   font: inherit;
-  vertical-align: baseline; }
+  vertical-align: top; }
 
 .reveal article, .reveal aside, .reveal details, .reveal figcaption, .reveal figure,
 .reveal footer, .reveal header, .reveal hgroup, .reveal menu, .reveal nav, .reveal section {