Ticket #38674: 38674.1.patch

wp-admin/css/common.css

@@ -1565 +1565 @@
         display: none;
 }
 
+.toggle-hidden-updates.button-link {
+        color: #0073aa; 
+        outline: 0;
+        -webkit-transition-property: border, background, color; 
+        transition-property: border, background, color; 
+        -webkit-transition-duration: .05s; 
+        transition-duration: .05s; 
+        -webkit-transition-timing-function: ease-in-out; 
+        transition-timing-function: ease-in-out; 
+}
+
+.toggle-hidden-updates.button-link:active,
+.toggle-hidden-updates .button-link:hover {
+        color: #00a0d2; 
+}
+
+.toggle-hidden-updates.button-link:focus {
+        color: #124964; 
+        -webkit-box-shadow: 
+                0 0 0 1px #5b9dd9, 
+                0 0 2px 1px rgba(30, 140, 190, .8); 
+        box-shadow: 
+                0 0 0 1px #5b9dd9, 
+                0 0 2px 1px rgba(30, 140, 190, .8); 
+}
+
 form.upgrade {
         margin-top: 8px;
 }

wp-admin/update-core.php

@@ -131 +131 @@
                 });
         </script>
         <?php
-                echo '<p class="hide-if-no-js"><a id="show-dismissed" href="#">'.__('Show hidden updates').'</a></p>';
+                echo '<p class="hide-if-no-js"><button class="toggle-hidden-updates button-link" id="show-dismissed">'.__('Show hidden updates').'</button></p>';
                 echo '<ul id="dismissed-updates" class="core-updates dismissed">';
                 foreach ( (array) $dismissed as $update) {
                         echo '<li>';