1.為了固定表頭我們需要先把表格的head和tbody切分到兩個table裡： <table class=”table-head”></table>和 <table class=”table-body”></table>裡。
2.將table-body放在一個table-body-box的div裡設定y軸方向可以滾動，x軸方向不可滾動，這樣表內容就能在自己的區域實現垂直方向的滾動了。
3.將table-head設定為absolute
4.將table-head和table-body-box的div放入一個table-box的div中，設定橫向x軸可以滾動，y軸不可滾動。
這樣兩個表就會在x方向滾動，y軸不滾動，表頭就垂直方向固定在垂直方向，橫向滾動在table-box出現滾動條的時候，內部的表格頭和表格內容因為沒有設定為fixed，所以會被滾動。
表頭和表內容的橫向方向滾動能力（其實是父級overflow-x:scroll樣式賦予的）。表內容的垂直方向滾動是通過表內容外套的table-body-box設定overflow-y:scroll來實現的。
5.程式碼如下：
<style>
.table-box {
height: 100%;
width: 100%;
overflow-y: hidden;
overflow-x: scroll;
-webkit-overflow-scrolling: touch;
position: relative;
}
.table-head {
background-color: #F9FAFE;
border-top: 1px solid #e8e8e8;
border-bottom: 1px solid #e8e8e8;
color: #777;
table-layout: fixed;
position: absolute;
top:0;
}
.table-head th {
border-collapse: collapse;
height: 40px;
}
.table-body-box {
table-layout: fixed;
-webkit-overflow-scrolling: touch;
overflow-x: hidden;
overflow-y: scroll;
height: 100%;
box-sizing: border-box;
padding-top: 50px;
}
.table-body{
table-layout: fixed;
width: 100%;
background-color: white;
text-align: center;
}
.table-body tr:nth-child(even) {
background-color: #F9FAFE;
}
</style>
html如下
<div style="height:500px">
<div class="table-box">
<table class="table-head" style="width: 900px">
<colgroup>
<col width="150">
<col width="100">
<col>
<col>
<col>
<col>
<col>
</colgroup>
<thead>
<tr>
<th>Company</th>
<th>Provision</th>
<th>Following in Point</th>
<th>Customer Grade</th>
<th>Allocated Time</th>
<th>Follow up Person</th>
<th>Department</th>
</tr>
</thead>
</table>
<div class="table-body-box" style="width: 900px">
<table class="table-body">
<colgroup>
<col width="150">
<col width="100">
<col>
<col>
<col>
<col>
<col>
</colgroup>
<tbody>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
<tr>
<td>Shanghai Yinghuang</td>
<td>FOB</td>
<td>Dumped Cabinet</td>
<td>Important</td>
<td>2017-10-28</td>
<td>Nathan</td>
<td>Sales Department</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
6.可以結合flex做到自適應表頭和表格內容