Update example content for revealjs style

Author: cderv

revealjs/callouts/default-styles.qmd

@@ -5,7 +5,7 @@ format: revealjs
 
 # No callout style
 
-## Code font size
+## Code font size `1 + 1`
 
 Content with inline code `1 + 1` and block
 
@@ -541,7 +541,15 @@ Some content
 :::
 
 
-# Callouts in Smaller
+# Following slides are in Smaller class
+
+## Code font size `1 + 1` {.smaller}
+
+Content with inline code `1 + 1` and block
+
+```{.python}
+1 + 1
+```
 
 ## Note {.smaller}