diff --git a/common/gtk-3.0/3.20/gtk-dark.css b/common/gtk-3.0/3.20/gtk-dark.css
index 60db2ca..bc510be 100644
--- a/common/gtk-3.0/3.20/gtk-dark.css
+++ b/common/gtk-3.0/3.20/gtk-dark.css
@@ -3590,7 +3590,7 @@ UnityDecoration {
   -UnityDecoration-title-indent: 10px;
   -UnityDecoration-title-fade: 35px;
   -UnityDecoration-title-alignment: 0.0; }
-  UnityDecoration.top {
+  UnityDecoration .top {
     border: 1px solid rgba(32, 35, 43, 0.97);
     border-bottom-width: 0;
     border-radius: 4px 4px 0 0;
@@ -3598,10 +3598,11 @@ UnityDecoration {
     background-image: linear-gradient(to bottom, #2f343f, #2f343f);
     color: rgba(207, 218, 231, 0.8);
     box-shadow: inset 0 1px rgba(54, 59, 72, 0.97); }
-    UnityDecoration.top:backdrop {
+    UnityDecoration .top:backdrop {
       border-bottom-width: 0;
       color: rgba(207, 218, 231, 0.5); }
-  UnityDecoration.left, UnityDecoration.right, UnityDecoration.bottom, UnityDecoration.left:backdrop, UnityDecoration.right:backdrop, UnityDecoration.bottom:backdrop {
+  UnityDecoration .left, UnityDecoration .right, UnityDecoration .bottom,
+  UnityDecoration .left:backdrop, UnityDecoration .right:backdrop, UnityDecoration .bottom:backdrop {
     background-color: transparent;
     background-image: linear-gradient(to bottom, rgba(32, 35, 43, 0.97), rgba(32, 35, 43, 0.97)); }
 
diff --git a/common/gtk-3.0/3.20/gtk-darker.css b/common/gtk-3.0/3.20/gtk-darker.css
index a859fd4..abe8f6f 100644
--- a/common/gtk-3.0/3.20/gtk-darker.css
+++ b/common/gtk-3.0/3.20/gtk-darker.css
@@ -3589,7 +3589,7 @@ UnityDecoration {
   -UnityDecoration-title-indent: 10px;
   -UnityDecoration-title-fade: 35px;
   -UnityDecoration-title-alignment: 0.0; }
-  UnityDecoration.top {
+  UnityDecoration .top {
     border: 1px solid rgba(32, 35, 43, 0.97);
     border-bottom-width: 0;
     border-radius: 4px 4px 0 0;
@@ -3597,10 +3597,11 @@ UnityDecoration {
     background-image: linear-gradient(to bottom, #2f343f, #2f343f);
     color: rgba(207, 218, 231, 0.8);
     box-shadow: inset 0 1px rgba(54, 59, 72, 0.97); }
-    UnityDecoration.top:backdrop {
+    UnityDecoration .top:backdrop {
       border-bottom-width: 0;
       color: rgba(207, 218, 231, 0.5); }
-  UnityDecoration.left, UnityDecoration.right, UnityDecoration.bottom, UnityDecoration.left:backdrop, UnityDecoration.right:backdrop, UnityDecoration.bottom:backdrop {
+  UnityDecoration .left, UnityDecoration .right, UnityDecoration .bottom,
+  UnityDecoration .left:backdrop, UnityDecoration .right:backdrop, UnityDecoration .bottom:backdrop {
     background-color: transparent;
     background-image: linear-gradient(to bottom, rgba(32, 35, 43, 0.97), rgba(32, 35, 43, 0.97)); }
 
diff --git a/common/gtk-3.0/3.20/gtk-solid-dark.css b/common/gtk-3.0/3.20/gtk-solid-dark.css
index 8afebb7..34b7e1e 100644
--- a/common/gtk-3.0/3.20/gtk-solid-dark.css
+++ b/common/gtk-3.0/3.20/gtk-solid-dark.css
@@ -3590,7 +3590,7 @@ UnityDecoration {
   -UnityDecoration-title-indent: 10px;
   -UnityDecoration-title-fade: 35px;
   -UnityDecoration-title-alignment: 0.0; }
-  UnityDecoration.top {
+  UnityDecoration .top {
     border: 1px solid #20232b;
     border-bottom-width: 0;
     border-radius: 4px 4px 0 0;
@@ -3598,10 +3598,11 @@ UnityDecoration {
     background-image: linear-gradient(to bottom, #2f343f, #2f343f);
     color: rgba(207, 218, 231, 0.8);
     box-shadow: inset 0 1px #363b48; }
-    UnityDecoration.top:backdrop {
+    UnityDecoration .top:backdrop {
       border-bottom-width: 0;
       color: rgba(207, 218, 231, 0.5); }
-  UnityDecoration.left, UnityDecoration.right, UnityDecoration.bottom, UnityDecoration.left:backdrop, UnityDecoration.right:backdrop, UnityDecoration.bottom:backdrop {
+  UnityDecoration .left, UnityDecoration .right, UnityDecoration .bottom,
+  UnityDecoration .left:backdrop, UnityDecoration .right:backdrop, UnityDecoration .bottom:backdrop {
     background-color: transparent;
     background-image: linear-gradient(to bottom, #20232b, #20232b); }
 
diff --git a/common/gtk-3.0/3.20/gtk-solid-darker.css b/common/gtk-3.0/3.20/gtk-solid-darker.css
index becacd4..c3a2dac 100644
--- a/common/gtk-3.0/3.20/gtk-solid-darker.css
+++ b/common/gtk-3.0/3.20/gtk-solid-darker.css
@@ -3589,7 +3589,7 @@ UnityDecoration {
   -UnityDecoration-title-indent: 10px;
   -UnityDecoration-title-fade: 35px;
   -UnityDecoration-title-alignment: 0.0; }
-  UnityDecoration.top {
+  UnityDecoration .top {
     border: 1px solid #20232b;
     border-bottom-width: 0;
     border-radius: 4px 4px 0 0;
@@ -3597,10 +3597,11 @@ UnityDecoration {
     background-image: linear-gradient(to bottom, #2f343f, #2f343f);
     color: rgba(207, 218, 231, 0.8);
     box-shadow: inset 0 1px #363b48; }
-    UnityDecoration.top:backdrop {
+    UnityDecoration .top:backdrop {
       border-bottom-width: 0;
       color: rgba(207, 218, 231, 0.5); }
-  UnityDecoration.left, UnityDecoration.right, UnityDecoration.bottom, UnityDecoration.left:backdrop, UnityDecoration.right:backdrop, UnityDecoration.bottom:backdrop {
+  UnityDecoration .left, UnityDecoration .right, UnityDecoration .bottom,
+  UnityDecoration .left:backdrop, UnityDecoration .right:backdrop, UnityDecoration .bottom:backdrop {
     background-color: transparent;
     background-image: linear-gradient(to bottom, #20232b, #20232b); }
 
diff --git a/common/gtk-3.0/3.20/gtk-solid.css b/common/gtk-3.0/3.20/gtk-solid.css
index 40d8c4d..450fe0e 100644
--- a/common/gtk-3.0/3.20/gtk-solid.css
+++ b/common/gtk-3.0/3.20/gtk-solid.css
@@ -3593,7 +3593,7 @@ UnityDecoration {
   -UnityDecoration-title-indent: 10px;
   -UnityDecoration-title-fade: 35px;
   -UnityDecoration-title-alignment: 0.0; }
-  UnityDecoration.top {
+  UnityDecoration .top {
     border: 1px solid rgba(0, 0, 0, 0.1);
     border-bottom-width: 0;
     border-radius: 4px 4px 0 0;
@@ -3601,10 +3601,11 @@ UnityDecoration {
     background-image: linear-gradient(to bottom, #e7e8eb, #e7e8eb);
     color: rgba(82, 93, 118, 0.8);
     box-shadow: inset 0 1px #eff0f2; }
-    UnityDecoration.top:backdrop {
+    UnityDecoration .top:backdrop {
       border-bottom-width: 0;
       color: rgba(82, 93, 118, 0.5); }
-  UnityDecoration.left, UnityDecoration.right, UnityDecoration.bottom, UnityDecoration.left:backdrop, UnityDecoration.right:backdrop, UnityDecoration.bottom:backdrop {
+  UnityDecoration .left, UnityDecoration .right, UnityDecoration .bottom,
+  UnityDecoration .left:backdrop, UnityDecoration .right:backdrop, UnityDecoration .bottom:backdrop {
     background-color: transparent;
     background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)); }
 
diff --git a/common/gtk-3.0/3.20/gtk.css b/common/gtk-3.0/3.20/gtk.css
index 26d5c6c..de1e6db 100644
--- a/common/gtk-3.0/3.20/gtk.css
+++ b/common/gtk-3.0/3.20/gtk.css
@@ -3593,7 +3593,7 @@ UnityDecoration {
   -UnityDecoration-title-indent: 10px;
   -UnityDecoration-title-fade: 35px;
   -UnityDecoration-title-alignment: 0.0; }
-  UnityDecoration.top {
+  UnityDecoration .top {
     border: 1px solid rgba(0, 0, 0, 0.1);
     border-bottom-width: 0;
     border-radius: 4px 4px 0 0;
@@ -3601,10 +3601,11 @@ UnityDecoration {
     background-image: linear-gradient(to bottom, #e7e8eb, #e7e8eb);
     color: rgba(82, 93, 118, 0.8);
     box-shadow: inset 0 1px rgba(239, 240, 242, 0.95); }
-    UnityDecoration.top:backdrop {
+    UnityDecoration .top:backdrop {
       border-bottom-width: 0;
       color: rgba(82, 93, 118, 0.5); }
-  UnityDecoration.left, UnityDecoration.right, UnityDecoration.bottom, UnityDecoration.left:backdrop, UnityDecoration.right:backdrop, UnityDecoration.bottom:backdrop {
+  UnityDecoration .left, UnityDecoration .right, UnityDecoration .bottom,
+  UnityDecoration .left:backdrop, UnityDecoration .right:backdrop, UnityDecoration .bottom:backdrop {
     background-color: transparent;
     background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)); }
 
diff --git a/common/gtk-3.0/3.20/sass/_unity.scss b/common/gtk-3.0/3.20/sass/_unity.scss
index b851ec9..cb18aec 100644
--- a/common/gtk-3.0/3.20/sass/_unity.scss
+++ b/common/gtk-3.0/3.20/sass/_unity.scss
@@ -17,7 +17,7 @@ UnityDecoration {
   -UnityDecoration-title-fade: 35px;
   -UnityDecoration-title-alignment: 0.0;
 
-  &.top {
+  .top {
     border: 1px solid if($darker=='true' or $variant == 'dark', darken($header_bg, 7%), transparentize(black, 0.9));
     border-bottom-width: 0;
     border-radius: 4px 4px 0 0;
@@ -34,8 +34,8 @@ UnityDecoration {
       color: transparentize($header_fg, 0.3);
     }
   }
-  &.left, &.right, &.bottom,
-  &.left:backdrop, &.right:backdrop, &.bottom:backdrop {
+  .left, .right, .bottom,
+  .left:backdrop, .right:backdrop, .bottom:backdrop {
     background-color: transparent;
     background-image: _solid(if($darker=='true' or $variant == 'dark', darken($header_bg, 7%), transparentize(black, 0.9)));
   }