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 a321278..966318a 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
@@ -174,6 +174,36 @@
   transition: opacity 800ms ease-in-out;
 }
 
+.reveal .slide-number {
+  position: absolute;
+  display: block;
+  right: 48px;
+  bottom: 32px;
+  z-index: 31;
+  font-family: Fira Sans, sans-serif;
+  font-size: 18px;
+  line-height: 1;
+  background-color: white;
+  color: #666;
+  padding: 5px;
+}
+
+.reveal .title-frame .slide-number {
+  display: none !important;
+}
+
+.title-frame div {
+  text-align:right !important;
+  background-image: url("https://corpora.ids-mannheim.de/slides/reveal.js.ids/images/Mitglied_WGL_transparent.svg") !important;
+  background-repeat: no-repeat;
+  background-position: right 90px bottom 10px !important;
+  background-size: 7vH auto !important;
+
+}
+
+.slide-menu-items, .slide-menu-toolbar {
+  font-family: 'Fira Sans' !important;
+}
 
 /*
  * Menu controls
diff --git a/inst/reveal.js-4.6.1/dist/theme/ids.css b/inst/reveal.js-4.6.1/dist/theme/ids.css
index 4a20abc..6493e18 100644
--- a/inst/reveal.js-4.6.1/dist/theme/ids.css
+++ b/inst/reveal.js-4.6.1/dist/theme/ids.css
@@ -456,6 +456,36 @@
   transition: opacity 800ms ease-in-out;
 }
 
+.reveal .slide-number {
+  position: absolute;
+  display: block;
+  right: 48px;
+  bottom: 32px;
+  z-index: 31;
+  font-family: Fira Sans, sans-serif;
+  font-size: 18px;
+  line-height: 1;
+  background-color: white;
+  color: #666;
+  padding: 5px;
+}
+
+.reveal .title-frame .slide-number {
+  display: none !important;
+}
+
+.title-frame div {
+  text-align: right !important;
+  background-image: url("https://corpora.ids-mannheim.de/slides/reveal.js.ids/images/Mitglied_WGL_transparent.svg") !important;
+  background-repeat: no-repeat;
+  background-position: right 90px bottom 10px !important;
+  background-size: 7vH auto !important;
+}
+
+.slide-menu-items, .slide-menu-toolbar {
+  font-family: "Fira Sans" !important;
+}
+
 /*
  * Menu controls
  */