diff --git a/CHANGELOG.md b/CHANGELOG.md
index 46457bd68..ebdae243b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,7 +20,7 @@
 
 ### Maintenance and upkeep improvements
 
-- enhancement dep-chain: directly depend on bleach[css], instead of pulling in tinycss2. [#2166](https://github.com/jupyter/nbconvert/pull/2166) ([@xiacunshun](https://github.com/xiacunshun))
+- enhancement dep-chain: directly depend on bleach\[css\], instead of pulling in tinycss2. [#2166](https://github.com/jupyter/nbconvert/pull/2166) ([@xiacunshun](https://github.com/xiacunshun))
 - chore: update pre-commit hooks [#2146](https://github.com/jupyter/nbconvert/pull/2146) ([@pre-commit-ci](https://github.com/pre-commit-ci))
 
 ### Contributors to this release
@@ -1613,6 +1613,7 @@ raw template
 {%- endblock in_prompt -%}
     """
 
+
 exporter_attr = AttrExporter()
 output_attr, _ = exporter_attr.from_notebook_node(nb)
 assert "raw template" in output_attr
diff --git a/docs/api_examples/template_path/project_templates/nbconvert/templates/classic_clone/static/style.css b/docs/api_examples/template_path/project_templates/nbconvert/templates/classic_clone/static/style.css
index 881c1a531..dace08be3 100644
--- a/docs/api_examples/template_path/project_templates/nbconvert/templates/classic_clone/static/style.css
+++ b/docs/api_examples/template_path/project_templates/nbconvert/templates/classic_clone/static/style.css
@@ -7671,9 +7671,6 @@ button.close {
 .fa-bar-chart:before {
   content: "\f080";
 }
-.fa-twitter-square:before {
-  content: "\f081";
-}
 .fa-facebook-square:before {
   content: "\f082";
 }
@@ -7741,9 +7738,6 @@ button.close {
 .fa-phone-square:before {
   content: "\f098";
 }
-.fa-twitter:before {
-  content: "\f099";
-}
 .fa-facebook-f:before,
 .fa-facebook:before {
   content: "\f09a";