diff --git a/mail.yandex.ru-lite_check-all_on top.js b/mail.yandex.ru-lite_check-all_on top.js
index f94dd01..9270f4b 100644
--- a/mail.yandex.ru-lite_check-all_on top.js	
+++ b/mail.yandex.ru-lite_check-all_on top.js	
@@ -26,4 +26,8 @@
     aNode.before(check_all);
     let elem = document.getElementById("check-all1");
     elem.onclick = function(t){PDA.messages.checkAll(t)};
+    let elem_ca = document.getElementById("check-all");
+    var check = document.createElement("div");
+    check.innerHTML = '<span class="b-toolbar__col"><input name="mark" type="submit" value="Прочитано" class="b-toolbar__but b-toolbar__but__i" aria-label="Прочитано"></span>';
+    elem_ca.before(check);
 })();