[英]Using CSS, how do I set the formatting of just a single cell or a single column?
使用CSS,如何设置单个单元格或单个列的格式?
Use the ID
selector to target just that one element of the page, in this case, a table cell: 使用
ID
选择器仅将页面的一个元素作为目标,在这种情况下为表格单元:
<tr>
<td id="foo"></td>
</tr>
Then in the CSS: 然后在CSS中:
#foo
{
//-- CSS styling goes here just for this element only
}
That hash symbol ( #
) marks that name selector as belonging to an id
. 该哈希符号(
#
)将名称选择器标记为属于id
。 You can further lock it down in the stylesheet to apply only to a TD cell with that ID like so: 您可以将其进一步锁定在样式表中,以仅应用于具有该ID的TD单元,如下所示:
td#foo
{
//-- CSS styling goes here just for this element only
}
If you add in the rowspan
attribute into the TD
, you'll be able to turn that into a column and keep the styling you may have set out. 如果将
rowspan
属性添加到TD
,则可以将其变成一列,并保留您可能设置的样式。
<td id="foo" rowspan="3"></td>
If you mark the CSS selector name with a preceding period (.), like this: 如果将CSS选择器名称标记为前面的句点(。),则如下所示:
.foo
{
//-- CSS styles
}
that will target class
selectors in the HTML and you can style more than one matching element if you apply the CSS class attribute to the tag, like so: 它将以HTML中的
class
选择器为目标,并且如果将CSS class属性应用于标记,则可以设置多个匹配元素的样式,如下所示:
<tr>
<td class="foo"></td>
<td class="foo"></td>
<td class="foo"></td>
</tr>
Don't use CLASS
unless it will appear more than once on the page. 除非它在页面上出现多次,否则不要使用
CLASS
。
Give the cell a class name and style the class. 给单元格一个类名,并设置类的样式。
<td class="cellClass">test</td>
.cellClass { color: #a9a9a9 }
检出HTML <col>
和<colgroup>
标记,它们使您可以一次将格式应用于整个列或相邻的列组。
You can style the COLGROUP
that applies: 您可以设置适用的
COLGROUP
样式:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<style type="text/css">
#special { background:yellow }
</style>
</head>
<body>
<table>
<colgroup></colgroup>
<colgroup id="special"></colgroup>
<tr>
<td>a</td>
<td>1</td>
</tr>
<tr>
<td>b</td>
<td>2</td>
</tr>
</table>
</body>
</html>
给单元格/列一个类或ID,并使用CSS将格式应用于该单元格/列
For table cells, you'll need to give it some sort of identifier such that you can refer to it. 对于表格单元格,您需要为其提供某种标识符,以便您可以对其进行引用。 Depending on your needs, this will be either a class or an id.
根据您的需要,它可以是类或ID。
<td class="specialCell">...</td>
In your CSS you can then apply different formatting: 然后,您可以在CSS中应用不同的格式:
.specialCell { color: red; }
If you want to apply different styles to a column, there is the <col>
tag, but browser support is limited. 如果要对列应用不同的样式,则有
<col>
标记,但是浏览器支持受到限制。 You're probably better to apply that class to all elements manually (or by using Javascript) 您最好手动(或使用Javascript)将该类应用于所有元素
you can assign two names to a column. 您可以为列分配两个名称。 ex
前
<div class="foo"></div>
<div class="foo bar"></div>
<div class="foo"></div>
div.foo { color: #fff; }
div.bar { background-color: green; }
perhaps that could solve your problem? 也许可以解决您的问题?
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