diff --git a/css/theme/beige.css b/css/theme/beige.css
index 1c4adf5..fb5f137 100644
--- a/css/theme/beige.css
+++ b/css/theme/beige.css
@@ -193,10 +193,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -266,3 +268,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #f7f3de; } }
diff --git a/css/theme/black.css b/css/theme/black.css
index 5819669..dec6385 100644
--- a/css/theme/black.css
+++ b/css/theme/black.css
@@ -189,10 +189,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -262,3 +264,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #222; } }
diff --git a/css/theme/blood.css b/css/theme/blood.css
index f7335d9..15e6c20 100644
--- a/css/theme/blood.css
+++ b/css/theme/blood.css
@@ -192,10 +192,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -266,6 +268,13 @@ body {
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
 
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #222; } }
+
 .reveal p {
   font-weight: 300;
   text-shadow: 1px 1px #222; }
diff --git a/css/theme/league.css b/css/theme/league.css
index 1470d33..9dfa2ce 100644
--- a/css/theme/league.css
+++ b/css/theme/league.css
@@ -195,10 +195,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -268,3 +270,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #2b2b2b; } }
diff --git a/css/theme/moon.css b/css/theme/moon.css
index 066876b..52b3f67 100644
--- a/css/theme/moon.css
+++ b/css/theme/moon.css
@@ -193,10 +193,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -266,3 +268,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #002b36; } }
diff --git a/css/theme/night.css b/css/theme/night.css
index 7f24d16..51a3dd3 100644
--- a/css/theme/night.css
+++ b/css/theme/night.css
@@ -187,10 +187,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -260,3 +262,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #111; } }
diff --git a/css/theme/serif.css b/css/theme/serif.css
index 03661fc..ea01066 100644
--- a/css/theme/serif.css
+++ b/css/theme/serif.css
@@ -189,10 +189,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -262,3 +264,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #F0F1EB; } }
diff --git a/css/theme/simple.css b/css/theme/simple.css
index 21777fc..8432d84 100644
--- a/css/theme/simple.css
+++ b/css/theme/simple.css
@@ -192,10 +192,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -265,3 +267,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #fff; } }
diff --git a/css/theme/sky.css b/css/theme/sky.css
index 951129a..6f60a1d 100644
--- a/css/theme/sky.css
+++ b/css/theme/sky.css
@@ -196,10 +196,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -269,3 +271,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #f7fbfc; } }
diff --git a/css/theme/solarized.css b/css/theme/solarized.css
index 006606f..fe81f09 100644
--- a/css/theme/solarized.css
+++ b/css/theme/solarized.css
@@ -193,10 +193,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -266,3 +268,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #fdf6e3; } }
diff --git a/css/theme/template/theme.scss b/css/theme/template/theme.scss
index a43d6b2..a8f142d 100644
--- a/css/theme/template/theme.scss
+++ b/css/theme/template/theme.scss
@@ -217,9 +217,11 @@ body {
 
 .reveal sup {
 	vertical-align: super;
+	font-size: smaller;
 }
 .reveal sub {
 	vertical-align: sub;
+	font-size: smaller;
 }
 
 .reveal small {
diff --git a/css/theme/white.css b/css/theme/white.css
index 9a15f22..27e44a1 100644
--- a/css/theme/white.css
+++ b/css/theme/white.css
@@ -189,10 +189,12 @@ body {
   border-bottom: none; }
 
 .reveal sup {
-  vertical-align: super; }
+  vertical-align: super;
+  font-size: smaller; }
 
 .reveal sub {
-  vertical-align: sub; }
+  vertical-align: sub;
+  font-size: smaller; }
 
 .reveal small {
   display: inline-block;
@@ -262,3 +264,10 @@ body {
   -webkit-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   -moz-transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985);
   transition: width 800ms cubic-bezier(0.26, 0.86, 0.44, 0.985); }
+
+/*********************************************
+ * PRINT BACKGROUND
+ *********************************************/
+@media print {
+  .backgrounds {
+    background-color: #fff; } }