7 files changed, 53 insertions, 0 deletions
diff --git a/common/gtk-3.0/3.20/gtk-dark.css b/common/gtk-3.0/3.20/gtk-dark.css
index 8d69b6b..552005e 100644
--- a/common/gtk-3.0/3.20/gtk-dark.css
+++ b/common/gtk-3.0/3.20/gtk-dark.css
@@ -819,6 +819,14 @@ toolbar, .inline-toolbar {
     background-color: rgba(53, 57, 69, 0.85); }
     toolbar.osd.left, .osd.left.inline-toolbar, toolbar.osd.right, .osd.right.inline-toolbar, toolbar.osd.top, .osd.top.inline-toolbar, toolbar.osd.bottom, .osd.bottom.inline-toolbar {
       border-radius: 0; }
+    toolbar.osd.top, .osd.top.inline-toolbar {
+      border-width: 0 0 1px 0; }
+    toolbar.osd.bottom, .osd.bottom.inline-toolbar {
+      border-width: 1px 0 0 0; }
+    toolbar.osd.left, .osd.left.inline-toolbar {
+      border-width: 0 1px 0 0; }
+    toolbar.osd.right, .osd.right.inline-toolbar {
+      border-width: 0 0 0 1px; }
   toolbar:not(.inline-toolbar):not(.osd) switch, .inline-toolbar:not(.inline-toolbar):not(.osd) switch,
   toolbar:not(.inline-toolbar):not(.osd) scale, .inline-toolbar:not(.inline-toolbar):not(.osd) scale,
   toolbar:not(.inline-toolbar):not(.osd) entry, .inline-toolbar:not(.inline-toolbar):not(.osd) entry,
diff --git a/common/gtk-3.0/3.20/gtk-darker.css b/common/gtk-3.0/3.20/gtk-darker.css
index 3cae6f5..b1deddb 100644
--- a/common/gtk-3.0/3.20/gtk-darker.css
+++ b/common/gtk-3.0/3.20/gtk-darker.css
@@ -818,6 +818,14 @@ toolbar, .inline-toolbar {
     background-color: rgba(53, 57, 69, 0.85); }
     toolbar.osd.left, .osd.left.inline-toolbar, toolbar.osd.right, .osd.right.inline-toolbar, toolbar.osd.top, .osd.top.inline-toolbar, toolbar.osd.bottom, .osd.bottom.inline-toolbar {
       border-radius: 0; }
+    toolbar.osd.top, .osd.top.inline-toolbar {
+      border-width: 0 0 1px 0; }
+    toolbar.osd.bottom, .osd.bottom.inline-toolbar {
+      border-width: 1px 0 0 0; }
+    toolbar.osd.left, .osd.left.inline-toolbar {
+      border-width: 0 1px 0 0; }
+    toolbar.osd.right, .osd.right.inline-toolbar {
+      border-width: 0 0 0 1px; }
   toolbar:not(.inline-toolbar):not(.osd) switch, .inline-toolbar:not(.inline-toolbar):not(.osd) switch,
   toolbar:not(.inline-toolbar):not(.osd) scale, .inline-toolbar:not(.inline-toolbar):not(.osd) scale,
   toolbar:not(.inline-toolbar):not(.osd) entry, .inline-toolbar:not(.inline-toolbar):not(.osd) entry,
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 96e282f..4cc17e7 100644
--- a/common/gtk-3.0/3.20/gtk-solid-dark.css
+++ b/common/gtk-3.0/3.20/gtk-solid-dark.css
@@ -819,6 +819,14 @@ toolbar, .inline-toolbar {
     background-color: rgba(53, 57, 69, 0.9); }
     toolbar.osd.left, .osd.left.inline-toolbar, toolbar.osd.right, .osd.right.inline-toolbar, toolbar.osd.top, .osd.top.inline-toolbar, toolbar.osd.bottom, .osd.bottom.inline-toolbar {
       border-radius: 0; }
+    toolbar.osd.top, .osd.top.inline-toolbar {
+      border-width: 0 0 1px 0; }
+    toolbar.osd.bottom, .osd.bottom.inline-toolbar {
+      border-width: 1px 0 0 0; }
+    toolbar.osd.left, .osd.left.inline-toolbar {
+      border-width: 0 1px 0 0; }
+    toolbar.osd.right, .osd.right.inline-toolbar {
+      border-width: 0 0 0 1px; }
   toolbar:not(.inline-toolbar):not(.osd) switch, .inline-toolbar:not(.inline-toolbar):not(.osd) switch,
   toolbar:not(.inline-toolbar):not(.osd) scale, .inline-toolbar:not(.inline-toolbar):not(.osd) scale,
   toolbar:not(.inline-toolbar):not(.osd) entry, .inline-toolbar:not(.inline-toolbar):not(.osd) entry,
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 b615a22..8601f95 100644
--- a/common/gtk-3.0/3.20/gtk-solid-darker.css
+++ b/common/gtk-3.0/3.20/gtk-solid-darker.css
@@ -818,6 +818,14 @@ toolbar, .inline-toolbar {
     background-color: rgba(53, 57, 69, 0.9); }
     toolbar.osd.left, .osd.left.inline-toolbar, toolbar.osd.right, .osd.right.inline-toolbar, toolbar.osd.top, .osd.top.inline-toolbar, toolbar.osd.bottom, .osd.bottom.inline-toolbar {
       border-radius: 0; }
+    toolbar.osd.top, .osd.top.inline-toolbar {
+      border-width: 0 0 1px 0; }
+    toolbar.osd.bottom, .osd.bottom.inline-toolbar {
+      border-width: 1px 0 0 0; }
+    toolbar.osd.left, .osd.left.inline-toolbar {
+      border-width: 0 1px 0 0; }
+    toolbar.osd.right, .osd.right.inline-toolbar {
+      border-width: 0 0 0 1px; }
   toolbar:not(.inline-toolbar):not(.osd) switch, .inline-toolbar:not(.inline-toolbar):not(.osd) switch,
   toolbar:not(.inline-toolbar):not(.osd) scale, .inline-toolbar:not(.inline-toolbar):not(.osd) scale,
   toolbar:not(.inline-toolbar):not(.osd) entry, .inline-toolbar:not(.inline-toolbar):not(.osd) entry,
diff --git a/common/gtk-3.0/3.20/gtk-solid.css b/common/gtk-3.0/3.20/gtk-solid.css
index 74d573f..6f8cfec 100644
--- a/common/gtk-3.0/3.20/gtk-solid.css
+++ b/common/gtk-3.0/3.20/gtk-solid.css
@@ -818,6 +818,14 @@ toolbar, .inline-toolbar {
     background-color: rgba(53, 57, 69, 0.9); }
     toolbar.osd.left, .osd.left.inline-toolbar, toolbar.osd.right, .osd.right.inline-toolbar, toolbar.osd.top, .osd.top.inline-toolbar, toolbar.osd.bottom, .osd.bottom.inline-toolbar {
       border-radius: 0; }
+    toolbar.osd.top, .osd.top.inline-toolbar {
+      border-width: 0 0 1px 0; }
+    toolbar.osd.bottom, .osd.bottom.inline-toolbar {
+      border-width: 1px 0 0 0; }
+    toolbar.osd.left, .osd.left.inline-toolbar {
+      border-width: 0 1px 0 0; }
+    toolbar.osd.right, .osd.right.inline-toolbar {
+      border-width: 0 0 0 1px; }
   toolbar:not(.inline-toolbar):not(.osd) switch, .inline-toolbar:not(.inline-toolbar):not(.osd) switch,
   toolbar:not(.inline-toolbar):not(.osd) scale, .inline-toolbar:not(.inline-toolbar):not(.osd) scale,
   toolbar:not(.inline-toolbar):not(.osd) entry, .inline-toolbar:not(.inline-toolbar):not(.osd) entry,
diff --git a/common/gtk-3.0/3.20/gtk.css b/common/gtk-3.0/3.20/gtk.css
index 33d8107..4af1e14 100644
--- a/common/gtk-3.0/3.20/gtk.css
+++ b/common/gtk-3.0/3.20/gtk.css
@@ -818,6 +818,14 @@ toolbar, .inline-toolbar {
     background-color: rgba(53, 57, 69, 0.85); }
     toolbar.osd.left, .osd.left.inline-toolbar, toolbar.osd.right, .osd.right.inline-toolbar, toolbar.osd.top, .osd.top.inline-toolbar, toolbar.osd.bottom, .osd.bottom.inline-toolbar {
       border-radius: 0; }
+    toolbar.osd.top, .osd.top.inline-toolbar {
+      border-width: 0 0 1px 0; }
+    toolbar.osd.bottom, .osd.bottom.inline-toolbar {
+      border-width: 1px 0 0 0; }
+    toolbar.osd.left, .osd.left.inline-toolbar {
+      border-width: 0 1px 0 0; }
+    toolbar.osd.right, .osd.right.inline-toolbar {
+      border-width: 0 0 0 1px; }
   toolbar:not(.inline-toolbar):not(.osd) switch, .inline-toolbar:not(.inline-toolbar):not(.osd) switch,
   toolbar:not(.inline-toolbar):not(.osd) scale, .inline-toolbar:not(.inline-toolbar):not(.osd) scale,
   toolbar:not(.inline-toolbar):not(.osd) entry, .inline-toolbar:not(.inline-toolbar):not(.osd) entry,
diff --git a/common/gtk-3.0/3.20/sass/_common.scss b/common/gtk-3.0/3.20/sass/_common.scss
index 98d8bf5..21327e5 100644
--- a/common/gtk-3.0/3.20/sass/_common.scss
+++ b/common/gtk-3.0/3.20/sass/_common.scss
@@ -858,6 +858,11 @@ toolbar {
     &.right,
     &.top,
     &.bottom { border-radius: 0; } // positional classes for `attached` osd toolbars
+
+    &.top { border-width: 0 0 1px 0; }
+    &.bottom { border-width: 1px 0 0 0; }
+    &.left { border-width: 0 1px 0 0; }
+    &.right { border-width: 0 0 0 1px; }
   }
 
   &:not(.inline-toolbar):not(.osd) {