Ticket #41580: 41580.2.diff

src/wp-includes/css/buttons.css

@@ -59 +59 @@
         box-sizing: border-box;
 }
 
-/* Remove the dotted border on :focus and the extra padding in Firefox */
+/* Remove the dotted border on :focus in Firefox */
 .wp-core-ui button::-moz-focus-inner,
 .wp-core-ui input[type="reset"]::-moz-focus-inner,
 .wp-core-ui input[type="button"]::-moz-focus-inner,
 .wp-core-ui input[type="submit"]::-moz-focus-inner {
-        border-width: 0;
-        border-style: none;
-        padding: 0;
+        border: 0;
 }
 
 .wp-core-ui .button.button-large,

src/wp-includes/css/editor.css

@@ -670 +670 @@
         box-shadow: 0 1px 0 #cccccc;
 }
 
-/* Remove the dotted border on :focus and the extra padding in Firefox */
+/* Remove the dotted border on :focus in Firefox */
 .mce-window .mce-btn::-moz-focus-inner {
-        border-width: 0;
-        border-style: none;
-        padding: 0;
+        border: 0;
 }
 
 .mce-window .mce-btn:hover,