How do WP child-themes work? [closed]

From your css snippet it looks like you child theme’s styles are located in the /stylesheets/mystyle.css file. Make sure that the file is actually being imported.

I’d suggest either placing your css within the style.css file rather than a second import. But if you require the second file then modify your @import to @import url('/stylesheets/mystyle.css');.

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