Display part of content from external site

I want to only display section id=”content” from another website (no access), if possible. Tried removing other id / class but doesn’t work.

I want this section:

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I used the code below, and hide_elements didn’t work:

[advanced_iframe securitykey=”example-key” use_shortcode_attributes_only=”true” src=”https://www.lannerinc.com/news-and-events/latest-news/feed/rss” id=”example-id” height=”600″ width=”900″ show_part_of_iframe=”true” show_part_of_iframe_x=”0″ show_part_of_iframe_y=”340″ show_part_of_iframe_width=”100%” show_part_of_iframe_height=”600″ hide_elements=”#bottom-b_wrapper,.zsiq_floatmain”]

The page I need help with: [log in to see the link]