.float-right {
    float: right;
}

.display-none {
    display:none;
}

.wrapper {
    width: 100%;
    height: 550px;
    overflow: auto;
   position: relative;
}

table {
    table-layout: fixed;
}

thead,
tr > th {
    position: sticky;
  /* background: #fff;*/
}

thead {
    top: 0;
    z-index: 2;
}

tr > th {
    left: 0;
    z-index: 1;
}

thead tr > th:first-child {
    z-index: 2;
}