.small-padding {
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: 0;
    margin-left: 0;
}
.small-line-height {
    line-height: 1.0;
}
.no-line-height {
    line-height: 0.0;
}
.main-div {
    background: #ffffff none repeat scroll 0 0;
    border-radius: 2px;
    top: 50%;
    left: 50%;
    margin-top: -100px;
    margin-left: -100px;
    width:250px;
    height:200px;
    position: fixed;
}