Root node element not linked with the rest of nodes

[nagweenjaffer]

Describe the bug
why the root element is not being linked with other elements

To Reproduce
this is the code and issue https://codesandbox.io/s/quiet-water-yx1l3g?file=/src/styles.css
Expected behavior
I want the root element node with specfic style diffirent from other nodes but it's not being linked with rest of node
Screenshots
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Browser (please complete the following information):

• Browserchrome
• Version 1.0.0

Additional context
Add any other context about the problem here.

[nagweenjaffer]

@daniel-hauser can you please help here I think the problem is with return function