tbody标签什么意思
tbody标签主要定义一段表格主体（正文），使用tbody标签，可以将表格分为一个单独的部分，tbody标签可将表格中的一行或几行合成一组。
html tbody标签 语法
作用：组合 HTML 表格的主体内容。
说明：tbody 元素应该与 thead 和 tfoot 元素结合起来使用。如果您使用 thead、tfoot 以及 tbody 元素，您就必须使用全部的元素。它们的出现次序是：thead、tfoot、tbody，这样浏览器就可以在收到所有数据前呈现页脚了。您必须在 table 元素内部使用这些标签。
注释：在默认情况下这些元素不会影响到表格的布局。不过，您可以使用 CSS 使这些元素改变表格的外观。 内部必须拥有 标签！、
html tbody标签 示例
<html>
<head>
<style type="text/css">
thead {color:green}
tbody {color:blue;height:50px}
tfoot {color:red}
</style>
</head>
<body>
<table border="1">
<thead>
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
</thead>
<tbody>
<tr>
<td>January</td>
<td>$100</td>
</tr>
<tr>
<td>February</td>
<td>$80</td>
</tr>
</tbody>
<tfoot>
<tr>
<td>Sum</td>
<td>$180</td>
</tr>
</tfoot>
</table>
</body>
</html>
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