Add Horizontal line in center of A4 size page using Laravel Dompdf

I am working on invoice management system, where I need to print 2 copy of invoice (Original and Duplicate)in single A4 page to just reuse the page.

I am using Laravel 5.6 and laravel-dompdf.

I need something like this so that folding a page to center/half of page will make 2 copies without losing any content in print.

I am parsing Laravel blade view file. I need such a solution that it uses css only.

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