.topics-table {
    background-color: #999;
    margin-left: 80px;
    margin-bottom: 30px;
}
.topics-table th{
    background-color: #fff;
}
.topics-table td{
    background-color: #fff;
    text-align: center;
    width: 33%;
}

.topics-table2 {
    background-color: #999;
    margin: auto;
    margin-bottom: 30px;
    font-size: 12px;
}
.topics-table2 th{
    text-align: center;
    vertical-align: top;
    background-color: #CCCC99;
    padding: 4px 10px 4px 4px;
    font-weight: bold;;
}
.topics-table2 td{
    background-color: #fff;
    text-align: center;
}
.mb5{
    margin-bottom: 5px;
}
.mb10{
    margin-bottom: 10px;
}
.mb20{
    margin-bottom: 20px;
}
.mb30{
    margin-bottom: 30px;
}
.lb5{
    margin-left: 5px;
}
.lb10{
    margin-left: 10px;
}
.lb20{
    margin-left: 20px;
}