diff --git a/sib-chat.js b/sib-chat.js
index e90f96f3f817b5462f5ab43e19cdcd4c38f786dc..b317e0f3c88b99d10415daa0064bcf06ff0ce679 100644
--- a/sib-chat.js
+++ b/sib-chat.js
@@ -47,7 +47,7 @@ export const SibChat = {
       });
       this.element.shadowRoot.append(...Helpers.importCSS(
         'https://unpkg.com/converse.js@6.0/dist/converse.min.css',
-        '/lib/sib-chat/themes/converse-hd.css' // 'https://unpkg.com/@startinblox/component-chat@0.5/themes/converse-hd.css'
+        'https://unpkg.com/@startinblox/component-chat@0.5/themes/converse-hd.css'
       ));
       if (window.converse_sib === undefined) {
         this.initializeConverse();
diff --git a/themes/converse-hd.css b/themes/converse-hd.css
index 86edb964f9d3fd9865c6c25e53287c6aa00356ce..1a6bc2cfe23a1edf44d1f755e9de004bee09d300 100644
--- a/themes/converse-hd.css
+++ b/themes/converse-hd.css
@@ -484,6 +484,12 @@
 
 #conversejs #controlbox {
   order: -1;
+  display: none;
+}
+
+#conversejs.converse-embedded .chatbox, #conversejs.converse-fullscreen .chatbox {
+  flex: 0 0 100%;
+  max-width: 100%;
 }
 
 #conversejs.converse-embedded .toggle-controlbox,