如何仅使用 css 使粘性 table header 溢出到可滚动 div 内？

Question

我想置顶tableheader（总是在最上面），但是我有两个问题：

thead 不会在容器内溢出 div
thead 不随内容滚动（在 x 轴上）

这是一个例子（刚从另一个问题中分叉出来）：

HTML:

 <section class="">
      <div class="container">
        <table>
          <thead>
            <tr class="header">
              <th>
                Table attribute name
                <div>Table attribute name</div>
              </th>
              <th>
                Value
                <div>Value</div>
              </th>
              <th>
                Description
                <div>Description</div>
              </th>
            </tr>
          </thead>
          <tbody>
            <tr>
              <td>align</td>
              <td>left, center, right</td>
              <td>Not supported in HTML5. Deprecated in HTML 4.01. Specifies the alignment of a table according to surrounding text</td>
            </tr>
            <tr>
              <td>bgcolor</td>
              <td>rgb(x,x,x), #xxxxxx, colorname</td>
              <td>Not supported in HTML5. Deprecated in HTML 4.01. Specifies the background color for a table</td>
            </tr>
            <tr>
              <td>border</td>
              <td>1,""</td>
              <td>Specifies whether the table cells should have borders or not</td>
            </tr>
            <tr>
              <td>cellpadding</td>
              <td>pixels</td>
              <td>Not supported in HTML5. Specifies the space between the cell wall and the cell content</td>
            </tr>
            <tr>
              <td>cellspacing</td>
              <td>pixels</td>
              <td>Not supported in HTML5. Specifies the space between cells</td>
            </tr>
            <tr>
              <td>frame</td>
              <td>void, above, below, hsides, lhs, rhs, vsides, box, border</td>
              <td>Not supported in HTML5. Specifies which parts of the outside borders that should be visible</td>
            </tr>
            <tr>
              <td>rules</td>
              <td>none, groups, rows, cols, all</td>
              <td>Not supported in HTML5. Specifies which parts of the inside borders that should be visible</td>
            </tr>
            <tr>
              <td>summary</td>
              <td>text</td>
              <td>Not supported in HTML5. Specifies a summary of the content of a table</td>
            </tr>
            <tr>
              <td>width</td>
              <td>pixels, %</td>
              <td>Not supported in HTML5. Specifies the width of a table</td>
            </tr>
          </tbody>
        </table>
      </div>
    </section>

CSS:

html, body{
  margin:0;
  padding:0;
  height:100%;
}
section {
  position: relative;
  border: 1px solid #000;
  padding-top: 37px;
  background: #500;
  width: 200px;
  height: 200px;
}

table {
  border-spacing: 0;
  width:100%;
}
td + td {
  border-left:1px solid #eee;
}
td, th {
  border-bottom:1px solid #eee;
  background: #ddd;
  color: #000;
  width: 100px;
}
th {
  height: 0;
  line-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  color: transparent;
  border: none;
  white-space: nowrap;
}
th div{
  position: absolute;
  background: transparent;
  color: #fff;
  top: 0;
  line-height: normal;
  border-left: 1px solid #800;
}
th:first-child div{
  border: none;
}

我只想使用没有 js 技巧的 css 解决方案。列的宽度可以明确定义，但高度不能。

你能修复我的示例并解释它应该如何工作吗？

编辑：我已经检查过问题： Fixed header table with horizontal scrollbar and vertical scrollbar on - 这对我来说不是解决方案，因为前两个答案使用 JQuery，@Anshuman 建议的第三个答案也是 js-based（js 只是隐藏在 html 标签 onscroll= 中）

大多数解决方案都使用两个 table 而不是 thead，我想避免这种情况 - 我想使用 thead 部分设置已经呈现的 html table 的样式。

Answer 1

使用您的 html 结构，您可以在容器和 tbody 上调度滚动条。但只有当容器一直向右滚动时才会看到 tbody 滚动条。

不太确定这就是您要查找的内容（用于演示的宽度和高度，如果您尝试这样做，请根据您的需要更新这些内容）:

table {
  display: block;
  width: 75vw;
}

section {
  width: 25vw;
  overflow: hidden;
  position: relative;
  overflow-x: auto;
}

thead,
tbody {
  display: block;
}

tbody {
  height: 150px;
  overflow-x: hidden;
  overflow-y: auto;
}

tr {
  display: table;
  border-collapse: collapse;
  width: 75vw;
  table-layout: fixed;
}

th,
td,
th div {
  box-shadow: 0 0 0 1px;
}

th div {
  position: absolute;
  top: 0;
  left: auto;
  width: 25vw;
  background: gray;
}

<section>
  <table>
    <thead>
      <tr class="header">
        <th>
          Table attribute name
          <div>Table attribute name</div>
        </th>
        <th>
          Value
          <div>Value</div>
        </th>
        <th>
          Description
          <div>Description</div>
        </th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>align</td>
        <td>left, center, right</td>
        <td>Not supported in HTML5. Deprecated in HTML 4.01. Specifies the alignment of a table according to surrounding text</td>
      </tr>
      <tr>
        <td>bgcolor</td>
        <td>rgb(x,x,x), #xxxxxx, colorname</td>
        <td>Not supported in HTML5. Deprecated in HTML 4.01. Specifies the background color for a table</td>
      </tr>
      <tr>
        <td>border</td>
        <td>1,""</td>
        <td>Specifies whether the table cells should have borders or not</td>
      </tr>
      <tr>
        <td>cellpadding</td>
        <td>pixels</td>
        <td>Not supported in HTML5. Specifies the space between the cell wall and the cell content</td>
      </tr>
      <tr>
        <td>cellspacing</td>
        <td>pixels</td>
        <td>Not supported in HTML5. Specifies the space between cells</td>
      </tr>
      <tr>
        <td>frame</td>
        <td>void, above, below, hsides, lhs, rhs, vsides, box, border</td>
        <td>Not supported in HTML5. Specifies which parts of the outside borders that should be visible</td>
      </tr>
      <tr>
        <td>rules</td>
        <td>none, groups, rows, cols, all</td>
        <td>Not supported in HTML5. Specifies which parts of the inside borders that should be visible</td>
      </tr>
      <tr>
        <td>summary</td>
        <td>text</td>
        <td>Not supported in HTML5. Specifies a summary of the content of a table</td>
      </tr>
      <tr>
        <td>width</td>
        <td>pixels, %</td>
        <td>Not supported in HTML5. Specifies the width of a table</td>
      </tr>
    </tbody>
  </table>

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