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 d4c2c44..8629350 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
@@ -348,3 +348,7 @@
   content: "\a";
   white-space: pre;
 }
+
+.reveal code.sourceCode:last-child + pre {
+  height: 800px !important;
+}
\ No newline at end of file