Remove Gray Space between Featured Image Slider and Home Page Content

Hi. On my work-in-progress website -- http://029.b2b.myftpupload.com/ -- I'd like to remove the gray space between the Featured Image Slider and the beginning of the text on my Home Page. I think that there's enough black padding above my first line of text that I don't need the additional bar of gray space there as well. What Custom CSS Code could I add to the site to tighten up the space between these two elements? Thanks. Bri