su_post featured image / thumbnail

hi there,

is it possible to get the featured image (post-iamge) of a post with su_post or an other shortcode?

it ist possible with (for an example)
[su_slider source=”posts: 1234″ limit=”1″ link=”post” width=”900″ height=”600″ responsive=”yes” title=”no” centered=”no” arrows=”no” pages=”no” mousewheel=”no” autoplay=”0″]

but…. if i but it inside [su_content_slide] the responsivness gets lost

I want to have something like that

[su_content_slider effect=”slide” autoplay=”0″ style=”default” pages=”no” arrows=”no”]
[su_content_slide]
[su_slider source=”posts:1234″ limit=”1″ link=”post” width=”580″ height=”387″ responsive=”no” title=”no” centered=”no” arrows=”no” pages=”no” mousewheel=”no” autoplay=”0″]
[1/10] [su_post field=”post_title” post_id=”1234″]
[su_spacer size=”15″]
[su_post field=”post_excerpt” post_id=”1234″]
[/su_content_slide]
[/su_content_slider]

desktop https://imgur.com/Q7Bur5i
mobile https://imgur.com/uL2VOPz

please help ?? Thx a lot