diff --git a/exampleSite/content/shortcodes/notice.en.md b/exampleSite/content/shortcodes/notice.en.md
index aca0e49502..ce8c15628f 100644
--- a/exampleSite/content/shortcodes/notice.en.md
+++ b/exampleSite/content/shortcodes/notice.en.md
@@ -313,27 +313,29 @@ Just a box
 #### Code with Collapsed Colored Borders
 
 ````
-```c
-// Normal code:
-printf( "Hello world\n" )
-```
+> [!orange]
+> ```c
+> // With colored border in Markdown syntax
+> printf( "Hello world\n" )
+> ```
 
-{{%/* notice style="red" title="" */%}}
+{{%/* notice style="red" */%}}
 ```c
-// With colored border
+// With colored border in Shortcode syntax
 printf( "Hello world\n" )
 ```
 {{%/* /notice */%}}
 ````
 
-```c
-// Normal code:
-printf( "Hello world\n" )
-```
+> [!orange]
+> ```c
+> // With colored border in Markdown syntax
+> printf( "Hello world\n" )
+> ```
 
-{{% notice style="red" title="" %}}
+{{% notice style="red" %}}
 ```c
-// With colored border
+// With colored border in Shortcode syntax
 printf( "Hello world\n" )
 ```
 {{% /notice %}}
diff --git a/static/css/theme.css b/static/css/theme.css
index 7936a9e22f..9f704b3c4c 100644
--- a/static/css/theme.css
+++ b/static/css/theme.css
@@ -722,11 +722,11 @@ div.box > .box-content {
     padding-right: 1rem;
 }
 /* remove margin if only a single code block is contained in the tab */
-#R-body .box-content:has(> div.highlight:only-child){
+#R-body .box-content:has(> div.highlight:only-of-type){
     padding: 0;
 }
 /* remove border from a code block if single  */
-#R-body .box-content > div.highlight:only-child > pre{
+#R-body .box-content > div.highlight:only-of-type > pre{
     border: 0;
 }