将 CSS 样式应用于子元素 [英] Apply CSS Style to child elements
问题描述
我只想将样式应用于具有特定类的 DIV 内的表:
注意:我宁愿为子元素使用 CSS 选择器.
为什么 #1 有效而 #2 无效?
1:
div.test th, div.test td, div.test 标题 {padding:40px 100px 40px 50px;}2:
div.test th, td, caption {padding:40px 100px 40px 50px;}HTML:
<html><头><风格>div.test >th，td，标题 {填充:40px 100px 40px 50px;}</风格></头><身体><表格边框="2"><tr><td>一些</td></tr><tr><td>数据</td></tr><tr><td>这里</td></tr></表></div><div 类="测试"><表格边框="2"><tr><td>一些</td></tr><tr><td>数据</td></tr><tr><td>这里</td></tr></表></div></身体></html>我做错了什么?
解决方案 这段代码div.test th, td, caption {padding:40px 100px 40px 50px;}" 将规则应用于所有除了 all 之外，th 元素包含在具有名为 test 的类的 div 元素中td 元素和 所有 caption 元素.
它不同于一个divtd、th和caption元素> 具有 test 类的元素".为此，您需要更改选择器:
'>' 不受某些旧浏览器的完全支持(我在看着你，Internet Explorer).
div.test th,div.test td,div.test 标题 {填充:40px 100px 40px 50px；}
I want to apply styles only to the table inside the DIV with a particular class:
Note: I'd rather use a css-selector for children elements.
Why does the #1 works and #2 doesn't?
1:
div.test th, div.test td, div.test caption {padding:40px 100px 40px 50px;}
2:
div.test th, td, caption {padding:40px 100px 40px 50px;}
HTML:
<html>
<head>
<style>
div.test > th, td, caption {padding:40px 100px 40px 50px;}
</style>
</head>
<body>
<div>
<table border="2">
<tr><td>some</td></tr>
<tr><td>data</td></tr>
<tr><td>here</td></tr>
</table>
</div>
<div class="test">
<table border="2">
<tr><td>some</td></tr>
<tr><td>data</td></tr>
<tr><td>here</td></tr>
</table>
</div>
</body>
</html>
What am I doing wrong?
解决方案 This code "div.test th, td, caption {padding:40px 100px 40px 50px;}" applies a rule to all th elements which are contained by a div element with a class named test, in addition to all td elements and all caption elements.
It is not the same as "all td, th and caption elements which are contained by a div element with a class of test". To accomplish that you need to change your selectors:
'>' isn't fully supported by some older browsers (I'm looking at you, Internet Explorer).
div.test th,
div.test td,
div.test caption {
padding: 40px 100px 40px 50px;
}
这篇关于将 CSS 样式应用于子元素的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
