[epiphany] Improve style for fullscreen overlay text

[Michael Catanzaro <mcatanzaro src gnome org>]

commit a587dae408888d06f45574d367fef1230b6bb157
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Jan 16 10:13:04 2017 -0600

    Improve style for fullscreen overlay text

 src/resources/epiphany.css  |    8 +++++---
 src/resources/epiphany.scss |    9 +++++----
 2 files changed, 10 insertions(+), 7 deletions(-)
---
diff --git a/src/resources/epiphany.css b/src/resources/epiphany.css
index 6df77fc..efbe4b1 100644
--- a/src/resources/epiphany.css
+++ b/src/resources/epiphany.css
@@ -219,7 +219,9 @@ button.active-menu {
     text-shadow: none;
     -gtk-icon-shadow: none; }
 
-/* "Press $KEY to exit fullscreen" overlay text should be visible on dark pages */
+/* "Press $KEY to exit fullscreen" overlay text */
 #fullscreen-popup {
-  background-color: white;
-  padding: 6px; }
+  padding: 12px;
+  border-radius: 18px;
+  background: rgba(0, 0, 0, 0.65);
+  color: white; }
diff --git a/src/resources/epiphany.scss b/src/resources/epiphany.scss
index 4bc902e..7abe4c8 100644
--- a/src/resources/epiphany.scss
+++ b/src/resources/epiphany.scss
@@ -201,9 +201,10 @@ $close_button_fg_color: lighten($fg_color, 10%);
   }
 }
 
-/* "Press $KEY to exit fullscreen" overlay text should be visible on dark pages */
-
+/* "Press $KEY to exit fullscreen" overlay text */
 #fullscreen-popup {
-  background-color: white;
-  padding: 6px;
+  padding: 12px;
+  border-radius: 18px;
+  background: rgba(0, 0, 0, 0.65);
+  color: white;
 }