Merge pull request rails#42781 from lloydk/focus-indicator

Show keyboard focus indicator in guides [ci-skip]

Author: eileencodes

guides/assets/stylesheets/reset.css

@@ -15,7 +15,6 @@ table, caption, tbody, tfoot, thead, tr, th, td {
   margin: 0;
   padding: 0;
   border: 0;
-  outline: 0;
   font-size: 100%;
   background: transparent;
 }
@@ -25,12 +24,6 @@ a img {border:none;}
 ins {text-decoration: none;}
 del {text-decoration: line-through;}
 
-:focus {
-  -moz-outline:0;
-  outline:0;
-  outline-offset:0;
-}
-
 /* tables still need 'cellspacing="0"' in the markup */
 table {border-collapse: collapse; border-spacing: 0;}
 caption, th, td {text-align: left; font-weight: normal;}