.ybcz_tbody tr:nth-child(5) {
    position: relative;
    bottom: 147px;
    left: 335px;
}
.ybcz_tbody tr:nth-child(6) {
    position: relative;
    bottom: 147px;
    left: 335px;
}
.ybcz_tbody tr:nth-child(7) {
    position: relative;
    bottom: 147px;
    left: 335px;
}
.ybcz_tbody tr:nth-child(8) {
    position: relative;
    bottom: 147px;
    left: 335px;
}