diff --git a/capsule-prototype/css/left_menu.css b/capsule-prototype/css/left_menu.css
index 1d9c1912d762d49280ad40105fb53f7d8d50868c..a151c305062d8f2abf5c57fbdcdce255831a65dd 100644
--- a/capsule-prototype/css/left_menu.css
+++ b/capsule-prototype/css/left_menu.css
@@ -5,7 +5,8 @@
 }
 
 #left_menu {
-	width: 80px;
+  width: 80px;
+	min-width: 80px;
 	justify-content: space-between;
 	background: var(--rk-light-blue);
   overflow-x: auto;
@@ -50,14 +51,12 @@
 .btns_add_annotation li {
 	flex-direction: column;
 }
-
-.btns_control {
-}
 	
 #btn_add_note::before { content: url("images/icn-menu-addnote.png"); }
 #btn_add_link::before { content: url("images/icn-menu-addlink.png"); }
 #btn_add_file::before { content: url("images/icn-menu-addfile.png"); }
 #btn_add_paste::before { content: url("images/icn-image.png"); }
+
 #left_menu_item_preview::before { content: url("images/icn-menu-preview.png"); }
 #left_menu_item_settings::before { content: url("images/icn-menu-settings.png"); }
 
diff --git a/capsule-prototype/index.html b/capsule-prototype/index.html
index b51412beff7a536bc55e71a3de809f4ab0544f44..1c46db2c20cbeb926ceb2b9bf688dc37fc7ae312 100644
--- a/capsule-prototype/index.html
+++ b/capsule-prototype/index.html
@@ -233,8 +233,8 @@
 			</form>
 		</div>
 		<div class='flex-col'>
-			<div id='left_menu_item_preview' class='left_menu_item'>preview</div>
-			<div id='left_menu_item_settings' class='left_menu_item'>settings</div>
+			<div id='left_menu_item_preview' class='left_menu_item flex-col'>preview</div>
+			<div id='left_menu_item_settings' class='left_menu_item flex-col'>settings</div>
 		</div>
 	</div>