javascript - 两个表格垂直对齐，如何同步宽度/间距？

Question

这样我就可以有一个标题行固定在顶部的可滚动表格，我将标题分隔到他们自己的表格中的单独 div 中。下面的 div 有表格数据。表格的内容各不相同，因此我希望能够将顶部表格与下面行的间距和宽度同步，以便标题准确对齐。我怎样才能做到这一点？

[header 1|header 2|header3]
[cell1       | cell2    |        cell3]

以便：

[header 1    | header 2|     header 3]
[cell1       | cell2   |        cell3]

Answer 1

尝试这个

http://jsfiddle.net/gZTsr/6/

HTML：

    <div id="tableContainer" class="tableContainer">
<table border="0" cellpadding="0" cellspacing="0" width="100%" class="scrollTable">
<thead class="fixedHeader">
    <tr class="alternateRow">
        <th>Header 1</th>
        <th>Header 2</th>
        <th>Header 3</th>
    </tr>
</thead>
<tbody class="scrollContent">
    <tr class="normalRow">
        <td>Cell Content 1 da widim dali she se sinkne kato mu nabiem kancheto s 200000 simvola otgore</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>And Repeat 1</td>
        <td>And Repeat 2</td>
        <td>And Repeat 3</td>
    </tr>
    <tr class="normalRow">
        <td>Cell Content 1</td>
        <td>Cell Content 2</td>
        <td>Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>More Cell Content 1</td>
        <td>More Cell Content 2</td>
        <td>More Cell Content 3</td>
    </tr>
    <tr class="normalRow">
        <td>Even More Cell Content 1</td>
        <td>Even More Cell Content 2</td>
        <td>Even More Cell Content 3</td>
    </tr>
    <tr class="alternateRow">
        <td>End of Cell Content 1</td>
        <td>End of Cell Content 2</td>
        <td>End of Cell Content 3</td>
    </tr>
</tbody>
</table>
</div>

CSS：

    body {
    background: #FFF;
    color: #000;
    font: normal normal 12px Verdana, Geneva, Arial, Helvetica, sans-serif;
    margin: 10px;
    padding: 0
}

div.tableContainer {
    clear: both;
    border: 1px solid #963;
    height: 285px;
    overflow: auto;
    width: 756px
}

/* Reset overflow value to hidden for all non-IE browsers. */
html>body div.tableContainer {
    overflow: hidden;
    width: 756px
}

/* define width of table. IE browsers only                 */
div.tableContainer table {
    float: left;
    width: 740px
}

/* define width of table. Add 16px to width for scrollbar.           */
/* All other non-IE browsers.                                        */
html>body div.tableContainer table {
    width: 756px
}

/* set table header to a fixed position. WinIE 6.x only                                       */
/* In WinIE 6.x, any element with a position property set to relative and is a child of       */
/* an element that has an overflow property set, the relative value translates into fixed.    */
/* Ex: parent element DIV with a class of tableContainer has an overflow property set to auto */
thead.fixedHeader tr {
    position: relative
}

/* set THEAD element to have block level attributes. All other non-IE browsers            */
/* this enables overflow to work on TBODY element. All other non-IE, non-Mozilla browsers */
html>body thead.fixedHeader tr {
    display: block
}

/* make the TH elements pretty */
thead.fixedHeader th {
    background: #C96;
    border-left: 1px solid #EB8;
    border-right: 1px solid #B74;
    border-top: 1px solid #EB8;
    font-weight: normal;
    padding: 4px 3px;
    text-align: left
}

/* make the A elements pretty. makes for nice clickable headers                */
thead.fixedHeader a, thead.fixedHeader a:link, thead.fixedHeader a:visited {
    color: #FFF;
    display: block;
    text-decoration: none;
    width: 100%
}

/* make the A elements pretty. makes for nice clickable headers                */
/* WARNING: swapping the background on hover may cause problems in WinIE 6.x   */
thead.fixedHeader a:hover {
    color: #FFF;
    display: block;
    text-decoration: underline;
    width: 100%
}

/* define the table content to be scrollable                                              */
/* set TBODY element to have block level attributes. All other non-IE browsers            */
/* this enables overflow to work on TBODY element. All other non-IE, non-Mozilla browsers */
/* induced side effect is that child TDs no longer accept width: auto                     */
html>body tbody.scrollContent {
    display: block;
    height: 262px;
    overflow: auto;
    width: 100%
}

/* make TD elements pretty. Provide alternating classes for striping the table */
/* http://www.alistapart.com/articles/zebratables/                             */
tbody.scrollContent td, tbody.scrollContent tr.normalRow td {
    background: #FFF;
    border-bottom: none;
    border-left: none;
    border-right: 1px solid #CCC;
    border-top: 1px solid #DDD;
    padding: 2px 3px 3px 4px
}

tbody.scrollContent tr.alternateRow td {
    background: #EEE;
    border-bottom: none;
    border-left: none;
    border-right: 1px solid #CCC;
    border-top: 1px solid #DDD;
    padding: 2px 3px 3px 4px
}

/* define width of TH elements: 1st, 2nd, and 3rd respectively.          */
/* Add 16px to last TH for scrollbar padding. All other non-IE browsers. */
/* http://www.w3.org/TR/REC-CSS2/selector.html#adjacent-selectors        */
html>body thead.fixedHeader th {
    width: 200px
}

html>body thead.fixedHeader th + th {
    width: 240px
}

html>body thead.fixedHeader th + th + th {
    width: 316px
}

/* define width of TD elements: 1st, 2nd, and 3rd respectively.          */
/* All other non-IE browsers.                                            */
/* http://www.w3.org/TR/REC-CSS2/selector.html#adjacent-selectors        */
html>body tbody.scrollContent td {
    width: 200px
}

html>body tbody.scrollContent td + td {
    width: 240px
}

html>body tbody.scrollContent td + td + td {
    width: 300px
}
-->

这只是例证。如果需要，您可以对所有单元格进行 css 处理。

Answer 2

由于一张易于理解的桌子应该由一块组成，因此跨越它们不是一个好主意。您可以从 tag 或 id/class 设置宽度，但 thead 和 tbody 需要保留在流中才能一起扩展。

一个技巧是将thead克隆成tfoot。（对我来说，在表格底部看到标题提醒没有问题，您阅读了二维表格：）。

所以 tfoot cloned 可以设置在 position:absolute 上。

为避免 position:relative 的问题，请将您的表格包装在一个容器中。它将负责将 tfoot 保持在顶部并滚动。

演示：http ://dabblet.com/gist/5648624 （如果要使用 IE，则需要将 CSS/HTML 代码复制/粘贴到 codepen 或不喜欢 ie 的 jsfiddle dabblet :(）表格可以结构如下：

table
   caption
   thead
   tfoot
   tbody

无论 tfoot、tbody 或 thead 在哪里，它们都会在屏幕上占据位置