.margin10{
    margin: 10px;
}

.margin10-left{
    margin-left: 10px;
}

.margin10-right{
    margin-right: 10px;
}

.margin10-top{
    margin-top: 10px;
}

.margin10-bottom{
    margin-bottom: 10px;
}

.margin20{
    margin: 20px;
}

.margin20-left{
    margin-left: 20px;
}

.margin20-right{
    margin-right: 20px;
}

.margin20-top{
    margin-top: 20px;
}

.margin20-bottom{
    margin-bottom: 20px;
}

.clear{
    clear:both;
}