The Dropdown on the Demo Page Appears to Lose Shadow when Opened.

[davidhmays]

Describe your issue

Shadow should remain when dropdown open.

Steps to reproduce

Visit the dropdown section of this page, and open the dropdown: https://matifandy8.github.io/NeoBrutalismCSS/

What was the expected result?

Shadow effect should not be affected by opening the drop down.

Put here any screenshots or videos (optional)

No response

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