diff --git a/gtk-3.0/widgets/notebook.css b/gtk-3.0/widgets/notebook.css
index 3b1a215..90e9330 100644
--- a/gtk-3.0/widgets/notebook.css
+++ b/gtk-3.0/widgets/notebook.css
@@ -81,8 +81,9 @@
 }
 
 .notebook tab .button {
-    background-color: @theme_bg_color;
+    transition: none;
     color: @theme_fg_color;
+    background-color: inherit;
 }
 
 .notebook tab .button:hover {
@@ -94,4 +95,4 @@
 .notebook tab .button:active {
     color: shade(@theme_selected_fg_color, 1.0);
     background-color: transparent;
-}
\ No newline at end of file
+}
diff --git a/gtk-3.0/widgets/popover.css~ b/gtk-3.0/widgets/popover.css~
deleted file mode 100644
index 6119480..0000000
--- a/gtk-3.0/widgets/popover.css~
+++ /dev/null
@@ -1,62 +0,0 @@
-/************
- * popovers *
- ************/
-GtkPopover {
-    margin: 10px;
-    padding: 2px;
-    border-radius: 0;
-    border-color: shade(@theme_bg_color, 0.8);
-    border-width: 1px;
-    border-style: solid;
-    background-clip: border-box;
-    background-color: @theme_bg_color;
-    color: @theme_fg_color;
-    box-shadow: 0 0 2px alpha(black, 0.75);
-}
-
-GtkPopover.osd {
-    box-shadow: 0 2px 7px 3px alpha(black, 0.5);
-}
-
-GtkPopover > .list,
-GtkPopover > .view,
-GtkPopover > .toolbar {
-    background-color: transparent;
-}
-
-GtkPopover.osd > .toolbar .button {
-    border-radius: 0;
-    border-width: 0;
-    background-image: none;
-    background-color: transparent;
-}
-
-GtkPopover .separator {
-    border: 0;
-    background-color: transparent;
-    color: alpha(currentColor, 0.5);
-    font-size: 80%;
-    font-weight: bold;
-}
-
-GtkModelButton.button,
-GtkModelButton.button:active,
-GtkModelButton.button:insensitive,
-GtkModelButton.button:active:insensitive {
-    background-color: transparent;
-    background-image: none;
-    border-color: transparent;
-    border-style: none;
-    box-shadow: none;
-    color: @theme_fg_color;
-}
-
-GtkModelButton.button:active:hover,
-GtkModelButton.button:hover,
-GtkModelButton.button:selected {
-    border-width: 0;
-    border-color: transparent;
-    background-color: @theme_selected_bg_color;
-    background-image: none;
-    color: @theme_selected_fg_color;
-}