Fixes #248 - copy button no longer working (#261)

_sass/modules/_nav.scss

@@ -40,6 +40,10 @@
   margin-left: 15px;
 }
 
+.nav>li>a.current {
+  @include underline()
+}
+
 .nav li a:active, .nav li a:focus, .nav li a:hover {
   border-bottom: 0;
 }

js/copyToClipboard.js

@@ -7,7 +7,7 @@
 
     var copyCode = new Clipboard('.copy-button', {
         target: function(trigger) {
-            return trigger.nextElementSibling;
+            return trigger.parentElement.nextElementSibling;
         }
     });