removed comments

Author: willmcgugan

CHANGELOG.md

@@ -30,6 +30,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Removed
 
 - Breaking change: Removed `Markdown.code_dark_theme`, `Markdown.code_light_theme`, `Markdown.code_indent_guides` which are no longer needed with the new code fence. https://github.com/Textualize/textual/pull/5967
+- Removed focus style from Markdown, as it can be a little expensive https://github.com/Textualize/textual/commit/e84600cfb31630f8b5493bf1043a4a1e7c212f7c
 
 ## [4.0.0] - 2025-07-12
 

src/textual/widgets/_markdown.py

@@ -236,13 +236,6 @@ async def action_link(self, href: str) -> None:
         """Called on link click."""
         self.post_message(Markdown.LinkClicked(self._markdown, href))
 
-    # def notify_style_update(self) -> None:
-    #     # self.refresh(layout=True)
-
-    #     # """If CSS was reloaded, try to rebuild this block from its token."""
-    #     super().notify_style_update()
-    #     self.rebuild()
-
     def rebuild(self) -> None:
         """Rebuild the content of the block if we have a source token."""
         if self._inline_token is not None:
@@ -913,10 +906,7 @@ class Markdown(Widget):
         layout: vertical;
         color: $foreground;       
         overflow-y: hidden;
-        
-        # &:focus {
-        #     background-tint: $foreground 5%;
-        # }
+      
         &:dark > .code_inline {
             background: $warning 10%;
             color: $text-warning 95%;