blog: More slides.

Change-Id: I4145cd3acdf3a4bbe072e34fa856171081045b19
diff --git a/blog/src/main/asciidoc/SLIDES.css b/blog/src/main/asciidoc/SLIDES.css
index b3bed7d..b3e362e 100644
--- a/blog/src/main/asciidoc/SLIDES.css
+++ b/blog/src/main/asciidoc/SLIDES.css
@@ -1,3 +1,7 @@
 .reveal pre code {
     max-height: 100% !important;
 }
+
+.supersmall {
+    font-size: x-small;
+}