[gedit/gnome-3-34] Fix overview map css selector

[Sébastien Wilmet <swilmet src gnome org>]

commit 28290535e1b40a44f5e788a2f244a3d359ac3538
Author: Trinh Anh Ngoc <ngoc trinh tvtmarine com>
Date:   Sat Jun 1 22:23:01 2019 +0700

    Fix overview map css selector
    
    Closes https://gitlab.gnome.org/GNOME/gedit/merge_requests/46

 gedit/resources/css/gedit-style.css | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gedit/resources/css/gedit-style.css b/gedit/resources/css/gedit-style.css
index 3222303a5..7036567c4 100644
--- a/gedit/resources/css/gedit-style.css
+++ b/gedit/resources/css/gedit-style.css
@@ -14,11 +14,11 @@
     padding: 12px;
 }
 
-.gedit-map-frame:dir(ltr) {
+.gedit-map-frame:dir(ltr) border {
     border-width: 0 0 0 1px;
 }
 
-.gedit-map-frame:dir(rtl) {
+.gedit-map-frame:dir(rtl) border {
     border-width: 0 1px 0 0;
 }