diff --git a/css/reveal.css b/css/reveal.css
index 14c87f03..bb562054 100644
--- a/css/reveal.css
+++ b/css/reveal.css
@@ -345,12 +345,12 @@ body {
     visibility: hidden; }
   .reveal .controls .enabled {
     visibility: visible;
-    opacity: 0.7;
+    opacity: 0.8;
     cursor: pointer;
     -webkit-transform: none;
             transform: none; }
   .reveal .controls .enabled.fragmented {
-    opacity: 0.3; }
+    opacity: 0.4; }
   .reveal .controls .enabled:hover,
   .reveal .controls .enabled.fragmented:hover {
     opacity: 1; }
diff --git a/css/reveal.scss b/css/reveal.scss
index 4d5e889a..a5e95608 100644
--- a/css/reveal.scss
+++ b/css/reveal.scss
@@ -402,7 +402,7 @@ body {
 	// Any control button that can be clicked is "enabled"
 	.enabled {
 		visibility: visible;
-		opacity: 0.7;
+		opacity: 0.8;
 		cursor: pointer;
 		transform: none;
 	}
@@ -410,7 +410,7 @@ body {
 	// Any control button that leads to showing or hiding
 	// a fragment
 	.enabled.fragmented {
-		opacity: 0.3;
+		opacity: 0.4;
 	}
 
 	.enabled:hover,