Using CSS to affect div style inside iframe

Question

Is it possible to change styles of a div that resides inside an iframe on the page using CSS only?

Answer 1

Combining the different solutions, this is what worked for me.

$(document).ready(function () {
    $('iframe').on('load', function() {
        $("iframe").contents().find("#back-link").css("display", "none");
    }); 
});