Hi Katarina,
Thank you for providing the credentials. I went ahead and added the following code in the Element CSS of the column:
$el:hover {
box-shadow: 0em 0em 3em 1em rgb(255 10 50);
}
since the overflow is set to hidden, the box shadow of the button element won’t show, so the alternative approach was to add the box shadow to column on hover instead.
Please note that the code provided above serves as a guide only and is to help you in getting started so implementing it and maintaining the code will be out of our support scope and for further maintenance for new possible versions of the theme that may cause the customization to break, you will need to hire a developer.
Hope this helps!