Depending on what slideshow theme you're using, you could alter the stylesheet to put margin between the content and the slideshow. Slideshow themes are located by default inside the plugin folder, in folder themes. If for example, you use theme Classic, the path to it would be: wp-content/plugins/featured-articles-lite/themes/classic.
Once you locate the folder of the theme you're using, inside the theme folder you'll find a file called stylesheet.css. Edit the file and on main container (should be first in file) add margin-bottom: 10px;