limit height of online user list

includes/sys_menu.php

@@ -78,7 +78,7 @@ function make_menu() {
 
 function make_onlineusers() {
 	global $privileges, $user;
-	$html = '<nav class="container"><h4>Helfer online</h4>';
+	$html = '<nav class="container online"><h4>Helfer online</h4>';
 
 	$query = "SELECT UID, Nick, lastLogIn " . "FROM User " . "WHERE (`lastLogIn` > '" . (time() - 60 * 60) . "') " . "ORDER BY lastLogIn DESC";
 	$users = sql_select($query);

public/css/base.css

@@ -52,6 +52,11 @@ footer p {
     margin-left: 200px;
 }
 
+.container.online .content {
+    max-height: 15em;
+    overflow: auto;
+}
+
 a {
     color: #000;
 }