Remove space before feature image

Hello, I recently moved to wordpress.com for my blog and use "MADD Magazine" as the theme. Noticed that on my main-page, before featured image & link, there is a empty space. I am trying to find way to remove the empty space so my site looks elegant. The same problem is seen when I pick up any theme. Basically I am not able to remove the empty space before the featured image. Note: I tried the adding the following code on my 'customized css' but it only removed for 1 header image. /* For space above Header Image */ #hgroup-wrap { padding-bottom: 0px; } /* For space below Header Image */ #main { padding-top: 00px; } But unable to do the same for all the 'latest post' that come up on home page. Please help. Regards, Nameesh