diff --git a/browser/main/Detail/MarkdownNoteDetail.styl b/browser/main/Detail/MarkdownNoteDetail.styl
index 3357c6ef..25b6f2da 100644
--- a/browser/main/Detail/MarkdownNoteDetail.styl
+++ b/browser/main/Detail/MarkdownNoteDetail.styl
@@ -49,27 +49,8 @@ body[data-theme="dark"]
   .control-fullScreenButton
     topBarButtonDark()
 
-  .mode-tab
-    border 1px solid #444444
-    div
-      background-color $ui-dark-noteDetail-backgroundColor
-      &:first-child
-        border-right 1px solid #444444
-    .active
-      background-color #3A404C
-      box-shadow 2px 0px 7px #444444
 
 body[data-theme="solarized-dark"]
   .root
     border-left 1px solid $ui-solarized-dark-borderColor
     background-color $ui-solarized-dark-noteDetail-backgroundColor
-
-  .mode-tab
-    border 1px solid #586E75
-    div
-      background-color $ui-solarized-dark-noteDetail-backgroundColor
-      &:first-child
-        border-right 1px solid #586E75
-    .active
-      background-color #002B36
-      box-shadow 2px 0px 7px #222222
\ No newline at end of file