diff --git a/inst/reveal.js-4.6.1/css/theme/source/ids.scss b/inst/reveal.js-4.6.1/css/theme/source/ids.scss
index 966318a..e3736ae 100644
--- a/inst/reveal.js-4.6.1/css/theme/source/ids.scss
+++ b/inst/reveal.js-4.6.1/css/theme/source/ids.scss
@@ -26,7 +26,7 @@
 
 $mainFontSize: 42px;
 $mainFont: 'Libertinus Serif', Helvetica, sans-serif;
-$headingFont: 'Fira Sans Extra Condensed', 'Fira Sans', Helvetica, sans-serif;
+$headingFont: 'Fira Sans Condensed', 'Fira Sans', Helvetica, sans-serif;
 $headingTextShadow: none;
 $headingLetterSpacing: 0.05ex;
 $headingTextTransform: uppercase;
@@ -37,8 +37,8 @@
 
 $heading1Size: 2em;
 $heading2Size: 1.35em;
-$heading3Size: 1.1em;
-$heading4Size: 1.0em;
+$heading3Size: 0.9em;
+$heading4Size: 0.7em;
 
 $listBulletColor: $idsOrange;
 
@@ -97,10 +97,6 @@
   letter-spacing: 0em;
   text-align: center;
   display: table;
-  background-image: url("https://corpora.ids-mannheim.de/slides/reveal.js.ids/images/Mitglied_WGL_transparent.svg");
-  background-repeat: no-repeat;
-  background-position: right 20px center;
-  background-size: 6vH auto;
 }
 
 #ids-footer span {
@@ -108,7 +104,7 @@
   line-height: 100%;
   z-index: -20;
   font-size: 2vh;
-  font-family: "Fira Sans Extra Condensed", "Univers LT Std 47 Cn Lt", "Roboto Condensed", 'League Gothic', Impact, sans-serif;
+  font-family: "Fira Sans Condensed", "Fira Sans", "Roboto Condensed", 'League Gothic', Impact, sans-serif;
   display: inline-block;
   display: table-cell;
   vertical-align: middle;
@@ -234,3 +230,15 @@
     bottom: 2% !important;
   }
 }
+
+.reveal h3, h4, h5, h6 {
+  text-transform: none !important;
+}
+
+.reveal h3, h4, h5, h6 {
+  text-transform: none !important;
+}
+
+.reveal h2 + h3 {
+  margin-top: -0.5em !important;
+}