img{
    padding-bottom: 20px;
}
ol.innerlisthpchelp {
    list-style-type: lower-alpha;
    }

.padding_top_bottom{
    margin-bottom: 0;
    padding-top: 20px;
    padding-bottom: 20px;
}
.margin_top_bottom{
    margin-top: 40px;
    margin-bottom: 30px;
}
.margin_middle{
    margin-top: 10px;
    margin-bottom: 30px;
}
.borderblackblock{
     border:1px solid black;
     display: block;
}