diff --git a/src/main/frontend/handler/editor.cljs b/src/main/frontend/handler/editor.cljs
index c691c3608..3af468a7c 100644
--- a/src/main/frontend/handler/editor.cljs
+++ b/src/main/frontend/handler/editor.cljs
@@ -205,8 +205,7 @@
 
 (defn clear-selection!
   []
-  (state/clear-selection!)
-  (util/select-unhighlight! (dom/by-class "selected")))
+  (state/clear-selection!))
 
 (defn- text-range-by-lst-fst-line [content [direction pos]]
   (case direction
diff --git a/src/main/frontend/util.cljc b/src/main/frontend/util.cljc
index fc464f31b..2098bde9e 100644
--- a/src/main/frontend/util.cljc
+++ b/src/main/frontend/util.cljc
@@ -1115,18 +1115,6 @@
 
 (defn keyname [key] (str (namespace key) "/" (name key)))
 
-#?(:cljs
-   (defn select-highlight!
-     [blocks]
-     (doseq [block blocks]
-       (d/add-class! block "selected noselect"))))
-
-#?(:cljs
-   (defn select-unhighlight!
-     [blocks]
-     (doseq [block blocks]
-       (d/remove-class! block "selected" "noselect"))))
-
 #?(:cljs
    (defn drain-chan
      "drop all stuffs in CH, and return all of them"