diff --git a/inst/reveal.js-5.1.0/css/theme/source/ids.scss b/inst/reveal.js-5.1.0/css/theme/source/ids.scss
index 2f65834..9791304 100644
--- a/inst/reveal.js-5.1.0/css/theme/source/ids.scss
+++ b/inst/reveal.js-5.1.0/css/theme/source/ids.scss
@@ -433,18 +433,16 @@
 // Like the orange bar/IDS logo above, this is painted on the slide itself
 // (rather than on .slide-background-content, which spans the raw,
 // unscaled viewport) so it stays pinned to the title slide's true
-// bottom-right corner instead of the browser window's.
+// bottom-right corner instead of the browser window's. Its margin mirrors
+// the IDS logo's (top 10px / right 8px of the slide), so the two sit on
+// one shared inset.
 .reveal .slides section.title-frame {
   background-image: url("https://corpora.ids-mannheim.de/slides/reveal.js.ids/images/Mitglied_WGL_transparent.svg");
   background-repeat: no-repeat;
-  background-position: right 15px bottom 5px;
-  background-size: calc(var(--slide-height) * 0.07) auto;
-}
-
-@media only screen {
-  .reveal .slides section.title-frame {
-    background-position: right 45px bottom 5px;
-  }
+  background-position: right 8px bottom 10px;
+  background-size: calc(var(--slide-height) * 0.1) auto;
+  /* full slide height, so "bottom" really is the slide's bottom edge */
+  height: 100%;
 }