diff --git a/ext/bg/css/settings.css b/ext/bg/css/settings.css
index 09d60b26..21cbe256 100644
--- a/ext/bg/css/settings.css
+++ b/ext/bg/css/settings.css
@@ -128,7 +128,8 @@
     content: counter(audio-source-id);
 }
 
-#custom-popup-css {
+#custom-popup-css,
+#custom-popup-outer-css {
     width: 100%;
     min-height: 34px;
     height: 96px;
diff --git a/ext/bg/js/options.js b/ext/bg/js/options.js
index cadc4443..fac17d68 100644
--- a/ext/bg/js/options.js
+++ b/ext/bg/js/options.js
@@ -278,7 +278,8 @@ function profileOptionsCreateDefaults() {
             mainDictionary: '',
             popupTheme: 'default',
             popupOuterTheme: 'default',
-            customPopupCss: ''
+            customPopupCss: '',
+            customPopupOuterCss: ''
         },
 
         audio: {
diff --git a/ext/bg/js/settings.js b/ext/bg/js/settings.js
index 900b89bb..7eee7bce 100644
--- a/ext/bg/js/settings.js
+++ b/ext/bg/js/settings.js
@@ -42,6 +42,7 @@ async function formRead(options) {
     options.general.popupTheme = $('#popup-theme').val();
     options.general.popupOuterTheme = $('#popup-outer-theme').val();
     options.general.customPopupCss = $('#custom-popup-css').val();
+    options.general.customPopupOuterCss = $('#custom-popup-outer-css').val();
 
     options.audio.enabled = $('#audio-playback-enabled').prop('checked');
     options.audio.autoPlay = $('#auto-play-audio').prop('checked');
@@ -112,6 +113,7 @@ async function formWrite(options) {
     $('#popup-theme').val(options.general.popupTheme);
     $('#popup-outer-theme').val(options.general.popupOuterTheme);
     $('#custom-popup-css').val(options.general.customPopupCss);
+    $('#custom-popup-outer-css').val(options.general.customPopupOuterCss);
 
     $('#audio-playback-enabled').prop('checked', options.audio.enabled);
     $('#auto-play-audio').prop('checked', options.audio.autoPlay);
diff --git a/ext/bg/settings.html b/ext/bg/settings.html
index 08e56a09..cb223e72 100644
--- a/ext/bg/settings.html
+++ b/ext/bg/settings.html
@@ -252,8 +252,16 @@
                 </div>
 
                 <div class="form-group options-advanced">
-                    <label for="custom-popup-css">Custom popup CSS</label>
-                    <div><textarea autocomplete="off" spellcheck="false" wrap="soft" id="custom-popup-css" class="form-control"></textarea></div>
+                    <div class="row">
+                        <div class="col-xs-6">
+                            <label for="custom-popup-css">Custom popup CSS</label>
+                            <div><textarea autocomplete="off" spellcheck="false" wrap="soft" id="custom-popup-css" class="form-control"></textarea></div>
+                        </div>
+                        <div class="col-xs-6">
+                            <label for="custom-popup-outer-css">Custom popup outer CSS</label>
+                            <div><textarea autocomplete="off" spellcheck="false" wrap="soft" id="custom-popup-outer-css" class="form-control"></textarea></div>
+                        </div>
+                    </div>
                 </div>
 
                 <div class="form-group ignore-form-changes" style="display: none;" id="settings-popup-preview-settings">