diff --git a/presentation/finalpresentation.Rmd b/presentation/finalpresentation.Rmd
index 67e310d..8e0f261 100644
--- a/presentation/finalpresentation.Rmd
+++ b/presentation/finalpresentation.Rmd
@@ -19,6 +19,9 @@ output:
       
 ---
 
+class: center, middle
+background-size: cover
+
 ```{r setup, include=FALSE}
 options(htmltools.dir.version = FALSE)
 ```
@@ -33,6 +36,9 @@ xaringanExtra::use_panelset()
 }
 ```
 
+# Last time...
+
+---
 
 # Depth: the third dimension
 
diff --git a/presentation/finalpresentation.html b/presentation/finalpresentation.html
index edc1253..5bf9e21 100644
--- a/presentation/finalpresentation.html
+++ b/presentation/finalpresentation.html
@@ -33,6 +33,9 @@
 ---
 
 
+class: center, middle
+background-size: cover
+
 
 
 
@@ -43,6 +46,9 @@
 }
 </style>
 
+# Last time...
+
+---
 
 # Depth: the third dimension