Remove the <hr> below settings nav.

It's not displayed in a flex container.

css/style.css

@@ -276,7 +276,7 @@ a[href="javascript:;"] {
 }
 #fourchanx-settings > nav {
   display: flex;
-  padding: 2px 2px 0;
+  padding: 2px 2px .5em;
 }
 #fourchanx-settings > nav a {
   text-decoration: underline;

html/General/Settings.html

@@ -11,6 +11,5 @@
       <a href="javascript:;" class="close fa fa-times" title="Close"></a>
     </div>
   </nav>
-  <hr>
   <section></section>
 </div>