jquery - access div in iframe parent

Question

I have a page which contains an iframe to another page, what I am looking for is to click something inside the iframe, which can then access or more specifically hide a div in the parent. I know some JQuery but for some reason just sit there blankly at the code editor when I try to write it on my own

Answer 1

try this in iframe:

$('#DIVtobehidden', window.parent.document).hide();