[sushi] Don't use deprecated pseudo-classes in css

[Matthias Clasen <matthiasc src gnome org>]

commit ba989b9bca8b2c1836d408f98a9a36f2a53b9fc8
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 17 21:59:05 2016 -0500

    Don't use deprecated pseudo-classes in css
    
    GTK+ complains about these now.

 src/resources/gtk-style.css |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/resources/gtk-style.css b/src/resources/gtk-style.css
index cee83b9..f956b5b 100644
--- a/src/resources/gtk-style.css
+++ b/src/resources/gtk-style.css
@@ -15,13 +15,13 @@ SushiFontWidget {
     background-color: shade (@np_bg_color, 1.30);
 }
 
-.scrollbar.button:prelight,
-.scrollbar.slider:prelight {
+.scrollbar.button:hover,
+.scrollbar.slider:hover {
     background-color: shade (@np_bg_color, 1.45);
 }
 
-.scrollbar.button:prelight:active,
-.scrollbar.slider:prelight:active {
+.scrollbar.button:hover:active,
+.scrollbar.slider:hover:active {
     background-color: shade (@np_bg_color, 1.70);
 }