Issue #1940208 by pameeela, mgifford, echoz: Fixed Contrast for add & remove...

Issue #1940208 by pameeela, mgifford, echoz: Fixed Contrast for add & remove shortcut links on overlay not sufficient for WCAG - Regression.

core/modules/shortcut/shortcut.theme-rtl.css

@@ -8,7 +8,7 @@
  * Add/remove links.
  */
 .add-or-remove-shortcuts .icon {
-  margin-left: 4px;
+  margin-left: 0;
   margin-right: 8px;
 }
 .add-shortcut a:focus .icon,

core/modules/shortcut/shortcut.theme.css

@@ -34,7 +34,6 @@
   background: transparent url(shortcut.png) no-repeat;
   height: 12px;
   margin-left: 8px; /* LTR */
-  margin-right: 4px;
   overflow: hidden;
   text-indent: 12px;
   width: 12px;

core/themes/seven/style-rtl.css

@@ -145,13 +145,6 @@ ol.task-list li.active {
   margin: -1.4em 0 0.3em 0;
 }
 
-/* Shortcut theming */
-div.add-or-remove-shortcuts {
-  float: none;
-  padding-left: 0;
-  padding-right: 6px;
-}
-
 /* Recent content block */
 #block-node-recent .more-link {
   padding: 0 0 5px 5px;

core/themes/seven/style.css

@@ -1033,10 +1033,14 @@ h1#overlay-title {
 }
 
 /* Shortcut theming */
-div.add-or-remove-shortcuts {
-  float: left; /* LTR */
-  padding-top: 0;
-  padding-left: 6px; /* LTR */
+.add-or-remove-shortcuts a:focus span.text,
+.add-or-remove-shortcuts a:hover span.text {
+  color: #fff;
+  background-color: #5f605b;
+  padding: 0 6px;
+  -moz-border-radius: 5px;
+  -webkit-border-radius: 5px;
+  border-radius: 5px;
 }
 
 /* Field UI */