diff --git a/classes/local/outagelib.php b/classes/local/outagelib.php
index cf591c7..1aebd11 100644
--- a/classes/local/outagelib.php
+++ b/classes/local/outagelib.php
@@ -129,15 +129,13 @@ class outagelib {
      * @return mixed[] Default configuration.
      */
     public static function get_config_defaults() {
-        global $CFG;
-
         return [
             'default_autostart' => '0',
             'default_duration' => (string)(60 * 60),
             'default_warning_duration' => (string)(60 * 60),
             'default_title' => get_string('defaulttitlevalue', 'auth_outage'),
             'default_description' => get_string('defaultdescriptionvalue', 'auth_outage'),
-            'css' => file_get_contents($CFG->dirroot.'/auth/outage/views/warningbar/warningbar.css'),
+            'css' => '',
         ];
     }
 
diff --git a/lang/en/auth_outage.php b/lang/en/auth_outage.php
index f290968..886dace 100644
--- a/lang/en/auth_outage.php
+++ b/lang/en/auth_outage.php
@@ -61,7 +61,7 @@ $string['clioutagecreated'] = 'Outage created, id: {$a->id}';
 $string['clone'] = 'Clone';
 $string['datetimeformat'] = '%a %d %h %Y at %I:%M%P %Z';
 $string['defaultlayoutcss'] = 'Layout CSS';
-$string['defaultlayoutcssdescription'] = 'This CSS code will be used to display the Outage Warning Bar.';
+$string['defaultlayoutcssdescription'] = 'This CSS code can be used to override the Outage Warning Bar CSS.';
 $string['defaultoutageautostart'] = 'Outage auto start';
 $string['defaultoutageautostartdescription'] = 'If the outage should automatically trigger maintenance mode once it starts, locking down the whole site.';
 $string['defaultoutageduration'] = 'Outage duration';
diff --git a/views/warningbar/warningbar.php b/views/warningbar/warningbar.php
index 86382ae..ec2d9fe 100644
--- a/views/warningbar/warningbar.php
+++ b/views/warningbar/warningbar.php
@@ -59,9 +59,13 @@ if (!$viewbag['static']) {
         $title .= ' '.html_writer::span(html_writer::link($url, $text, $attr), '', ['id' => 'auth_outage_warningbar_button']);
     }
 }
-
-echo html_writer::tag('style', outagelib::get_config()->css);
 ?>
+    <style>
+        <?php
+            readfile($CFG->dirroot.'/auth/outage/views/warningbar/warningbar.css');
+            echo outagelib::get_config()->css;
+        ?>
+    </style>
 
     <div id="auth_outage_warningbar_box">
         <div class="auth_outage_warningbar_center">