help on margin

Hi i have been trying to remove the gap in the img but when i look in all the css of my template i cant seem to find it i have done it in crome n found this but its not telling me where it is hope someone can help me.

element.style {
border: 1px solid #ccc;
border-radius: 10px;
margin-top: 10px;

/http://i223.photobucket.com/albums/dd226/madman113/Capture-6_zpsede94b18.png