.table-body {
    table-layout: fixed;
    width: 100%;
    max-height: 400px;
    overflow-y: auto;
    border-collapse: collapse;
    font-size: 12px;
}

.table-body table {
    width: 100%;
}

.table-head table {
    table-layout: fixed;
    width: 100%;
    height: 30px;
}

.table-footer {
    width: 100%;
}