JSFiddle - React, Tailwind, and code Playground

HTML

<a href="http://www.forelise.com/media/for_elise_sheet_music.pdf" target="_blank">Abrir anexo</a>

JavaScript

$('a').click(function() {
    w = 600;
    h = 600;
    x = 10;
    y = 10;
    window.open(this.href, 'anexo', "resizable=no, toolbar=no, scrollbars=no, menubar=no, status=no, directories=no, width=" + w + ", height=" + h + ", left=" + x + ", top=" + y);

    return false;
});