colgroup

Html中的table包括 caption、col、colgroup、thead、tfoot 以及 tbody

由 两盒软妹~` 提交于 2020-01-07 05:04:21
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> HTML <table> 标签 定义和用法 <table> 标签定义 HTML 表格。 简单的 HTML 表格由 table 元素以及一个或多个 tr、th 或 td 元素组成。 tr 元素定义表格行，th 元素定义表头，td 元素定义表格单元。 更复杂的 HTML 表格也可能包括 caption、col、colgroup、thead、tfoot 以及 tbody 元素。 其实就使用来说table，tr，td。就够了。正规点加个表头，就是table， tr，th，td。如果包含标题，就在用上caption 第二种就是table，thead，tbody，tfoot，tr ，th，td一起来使用，对表进行分组。 再复杂些就的使用col，colgroup了。 HTML <col> 标签 定义和用法 <col> 标签为表格中一个或多个列定义属性值。 如需对全部列应用样式，<col> 标签很有用，这样就不需要对各个单元和各行重复应用样式了。 您只能在 table 或 colgroup 元素中使用 <col> 标签。 实例 col 元素为表格中的三个列规定了不同的对齐方式： <table width="100%" border="1"> <col align="left" /> <col align="left" />

CSS col visibility:collapse does not work on Chrome

由 好久不见. 提交于 2019-12-09 16:59:43
问题 I'm trying to hide some col's in html code. Using MDN colgroup and col are added, and I'm playing with the style of the cols. The <td> with content text 'visible' is visible in all browsers (good), the with content text 'hidden' is visible in chrome (bad) and hidden in Firefox and Edge. (good). Shortest code I could re-create problem is here: <!doctype html> <html> <head> <title>css example</title> <style type='text/css'> col.visible {} col.hidden { visibility:collapse; } </style> </head>

CSS col visibility:collapse does not work on Chrome

由 a 夏天 提交于 2019-12-04 03:21:56
I'm trying to hide some col's in html code. Using MDN colgroup and col are added, and I'm playing with the style of the cols. The <td> with content text 'visible' is visible in all browsers (good), the with content text 'hidden' is visible in chrome (bad) and hidden in Firefox and Edge. (good). Shortest code I could re-create problem is here: <!doctype html> <html> <head> <title>css example</title> <style type='text/css'> col.visible {} col.hidden { visibility:collapse; } </style> </head> <body> <table border='1'> <colgroup> <col class='visible'> <col class='hidden'> <tbody> <tr> <td>visible<

Span attribute on colgroup and col

由 爷，独闯天下 提交于 2019-12-01 00:02:51
Are these codes logically equivalent? <colgroup span="7"> </colgroup> And <col span="7" /> And <colgroup> <col /> <col /> <col /> <col /> <col /> <col /> <col /> </colgroup> Will any attributes via HTML or properties via CSS have equal effect? Can sombody also add "colgroup" Tag. No enough rep for me to do that. From the specification for <col> : Contexts in which this element can be used: As a child of a colgroup element that doesn't have a span attribute. [...] Content attributes: Global attributes span I read that as saying that just <col span="7" /> on its own is invalid but this:

Span attribute on colgroup and col

由 帅比萌擦擦* 提交于 2019-11-30 19:01:01
问题 Are these codes logically equivalent? <colgroup span="7"> </colgroup> And <col span="7" /> And <colgroup> <col /> <col /> <col /> <col /> <col /> <col /> <col /> </colgroup> Will any attributes via HTML or properties via CSS have equal effect? Can sombody also add "colgroup" Tag. No enough rep for me to do that. 回答1: From the specification for <col>: Contexts in which this element can be used: As a child of a colgroup element that doesn't have a span attribute. [...] Content attributes:
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