diff --git a/dev.yml b/dev.yml
index 2c1f5c0..92deea1 100644
--- a/dev.yml
+++ b/dev.yml
@@ -16,6 +16,8 @@ markdown_extensions:
     - pymdownx.details
     - pymdownx.tasklist:
         custom_checkbox: true
+    - pymdownx.tabbed:
+        alternate_style: true
 
 
 extra_css:
diff --git a/mkdocs.yml b/mkdocs.yml
index 2a55e3f..9a0238d 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -13,6 +13,8 @@ markdown_extensions:
     - pymdownx.highlight
     - pymdownx.superfences
     - def_list
+    - pymdownx.tabbed:
+        alternate_style: true
 
 extra_css:
     - css/extra.css