Make jQuery on page add CSS class to div within iframe?

Can I have jQuery on my page that adds a CSS class to a div thats within an iframe?

Thanks

UPDATE. For testing purposes Ive added the following. I would have thought that it would add a class of 'red' to all p tags in any iframe, but its not doing anything:

$(document).ready(function() { $('iframe') .c开发者_开发知识库ontents() .find('p') .addClass('red'); });

Thanks

If it's on the same domain, you should be able to.

Try using something like this:

$('#iframe-id')
  .contents()
  .find('.my-div')
    .addClass('my-other-class');

You can target a jquery selector on a specific element. In this case you will want to target the id / class of your div within the frames collection of your current page and perform the action.

See the following;

$('#mydivid', frames['myiframeid'].document).addClass('myclass');