.main-categories img,
.extra-categories img{
    width: 100%;
}
.main-categories .thumbnail,
.extra-categories .thumbnail{
    padding: 0;
}
.main-categories .caption .h3{
    margin-top: 8px;
    margin-bottom: 8px;
}
/*
.main-categories .caption{
    margin-top:15px;
    margin-bottom:20px;
}
*/