diff -r 3d4e9c994f10 -r a86126ab1dd4 wp/wp-admin/css/customize-nav-menus.css
--- a/wp/wp-admin/css/customize-nav-menus.css	Tue Oct 22 16:11:46 2019 +0200
+++ b/wp/wp-admin/css/customize-nav-menus.css	Tue Dec 15 13:49:49 2020 +0100
@@ -269,7 +269,8 @@
 
 .customize-screen-options-toggle:focus,
 #customize-controls .customize-info .customize-help-toggle:focus {
-	outline: none;
+	/* Only visible in Windows High Contrast mode */
+	outline: 1px solid transparent;
 }
 
 .customize-screen-options-toggle:before {
@@ -475,10 +476,6 @@
 	-moz-osx-font-smoothing: grayscale;
 }
 
-.ie8 .menu-item-bar .item-delete:before {
-	top: -10px;
-}
-
 .menu-item-bar .item-delete:hover,
 .menu-item-bar .item-delete:focus {
 	box-shadow: none;