How-to/CSS/About-working-with-CSS-in-Sandbox.md

@@ -68,6 +68,11 @@ When you are satisfied with your styling, you can leave it like it is or copy th
 ## Note that when using a CSS-file, any paths to images etc must be relative to where your CSS-file is located
 In the example above, the file custom.css is residing in the world *Oneshots*, in a subfolder named *style*.
 To use a path to a file in a subfolder to *style* named *images*,
+### Using a CSS-file
 ```css
   background-image: url("images/bg.jpg");
-``` 
\ No newline at end of file
+``` 
+### Using Custom CSS module
+```css
+  background-image: url("world/oneshots/style/images/bg.jpg");
+```