Homepage Featured Content Options

Hi, I use the featured content #1 to #3 to place button images, rather than photo images. The thing is that the default style provides these images a border with some white space. This makes my button a bit clumsy. Check this image: https://www.dropbox.com/s/5ctjosjq2pegrc5/Website.JPG Where & what do I need to change in the style sheet to undo this? Thx