.tableFixHead {
    overflow-y: auto;
    max-height: 300px;
}
.tableFixHead thead th {
    position: sticky;
    top: 0;
}
table {
    border-collapse: collapse;
    width: 100%;
}
th,
td {
    padding: 8px 16px;
    /*border: 1px solid #ccc;*/
}
th {
    /*background: #eee;*/
    z-index: 10;
}