diff --git a/index.html b/index.html
index cc376851..46decc18 100644
--- a/index.html
+++ b/index.html
@@ -181,7 +181,6 @@
             border-radius: 4px;
             padding: 8px;
             margin: 7px 0;
-            word-break: break-all;
             word-break: break-word;
             white-space: pre-wrap;
             text-align: left;
@@ -407,6 +406,16 @@
         close() {
             Telegram.WebApp.close();
         },
+        toggleMainButton(el) {
+            const mainButton = Telegram.WebApp.MainButton;
+            if (mainButton.isVisible) {
+                mainButton.hide();
+                el.innerHTML = 'Show Main Button';
+            } else {
+                mainButton.show();
+                el.innerHTML = 'Hide Main Button';
+            }
+        },
 
         // actions
         sendMessage(msg_id, with_webview) {