Templating/Custom-CSS.md

@@ -4,14 +4,14 @@ You can add your own CSS to your `decker` project. This way you are able to cust
 
 Simply add the following lines to your `YAML` slide deck header or the `decker.yaml` file in your project directory.
 
-```
+```yaml
 template:
   css: dummy.css
 ```
 
-In this example, the file `dummy.css` is on the same directory level as your `*-deck.md` file(s). If `dummy.css` contains the following content, the background of your slides should now be gray.
+In this example, the file `dummy.css` is on the same directory level as your `*-deck.md` file(s). If `dummy.css` contains the following content, the background of your slides should now appear gray.
 
-```
+```css
 div.slides {
   background-color: #ddd;
 }