bootstrap表头固定

css：

//表头固定

.fixed_headers thead tr {

    display: block;    position: relative;}.fixed_headers tbody {    display: block;    overflow: auto;    height: 250px;}//每列宽度

.fixed_headers td:nth-child(1),

.fixed_headers th:nth-child(1) {

    min-width: 250px;    text-overflow:ellipsis;    white-space:nowrap;    overflow:hidden;}.fixed_headers td:nth-child(2),.fixed_headers th:nth-child(2) {    min-width: 200px;}.fixed_headers td:nth-child(3),.fixed_headers th:nth-child(3) {    min-width: 200px;}.fixed_headers td:nth-child(4),.fixed_headers th:nth-child(4) {    min-width: 200px;}.fixed_headers td:nth-child(5),.fixed_headers th:nth-child(5) {    min-width: 200px;}.fixed_headers td:nth-child(6),.fixed_headers th:nth-child(6) {    min-width: 200px;}.fixed_headers td:nth-child(7),.fixed_headers th:nth-child(7) {    min-width: 200px;}.fixed_headers td:nth-child(8),.fixed_headers th:nth-child(8) {    min-width: 200px;}

html:

<table class="table  table-hover coma-base-table fixed_headers">    <thead>    <tr style="white-space: nowrap">        <th  style="font-weight: bold;">被参控公司</th>        <th  style="font-weight: bold;">参控关系</th>        <th  style="font-weight: bold;">直接持股比例</th>    </tr>    </thead>    <tbody>   　　　　　　..........    </tbody></table>