身体vs html [英] body vs html
问题描述
如果您在Yahoo.com上显示正在使用的样式，您可以看到一些有趣的东西。例如，这个：
html> body {font：84.5％/ 122％arial;}
我尝试使用这种风格创建示例页面并且它没有做任何事b / b
。任何人都知道是否有这个>是真正的代码还是语法
错误？我不确定那是什么/也有字体样式。或者
样式表在html样式和正文样式之间的差异。
查找讨论这些高级主题的CSS参考将有助于
我很了不起有人能指点我一本书或在线
参考讨论这些吗？谢谢。
If you display the styles in use at Yahoo.com, you can see some
interesting things. For example, this:
html>body{font:84.5%/122% arial;}
I tried creating a sample page using this style and it didn''t do
anything. Anyone know whether having this ">" is real code or a syntax
error? I''m not sure what that "/" does in the font style, either. Or
the difference in a stylesheet between an html style and a body style.
Finding a CSS reference that discusses these advanced topics would help
me a great deal. Could someone point me to a book or an on-line
reference that discusses these? Thanks.
推荐答案
Joe写道：
如果你在Yahoo.com上显示使用的样式，你可以看到一些有趣的东西。例如，这个：
html> body {font：84.5％/ 122％arial;}
我尝试使用这种风格创建一个示例页面，它没有做任何事情。
语法
X> Y（或X> Y）
表示 ; Y是X的直接子项。它与
XY
不同，这意味着在*任何*级别的X中包含一个Y。
虽然Internet Explorer认为X> Y'QUOT;是X Y （IIRC），
错误地解释它，它忽略了X> Y。共。这使得
X> Y {/ *某些属性* /}
a hack用于某些属性应设置为某些<浏览器，但不是IE浏览器。
回到你的观察：如果你正在使用IE，确切地说 -
声明无效。
任何人都知道是否有这个>是真正的代码还是语法
错误？我不确定那是什么/也有字体样式。
简写字体：字体：84.5％/ 122％arial"意思相同
字体大小：84.5％;
行高：122％;
font-family ：arial
或
样式表在html样式和body样式之间的区别。
在这种特殊情况下，由于HTML标记是BODY
标记的父标记，因此html> body是专门声明页面范围样式的方法对于
非IE浏览器。
查找讨论这些高级主题的CSS参考将对我有所帮助。有人能指点我讨论这些书的书或在线
参考吗？谢谢。
If you display the styles in use at Yahoo.com, you can see some
interesting things. For example, this:
html>body{font:84.5%/122% arial;}
I tried creating a sample page using this style and it didn''t do
anything.
The syntax
X>Y (or X > Y)
means "a Y that is an immediate child of an X". It''s different from
X Y
which means "a Y that is contained in X at *any* level".
While Internet Explorer thinks that "X > Y" is "X Y" (IIRC),
interpreting it wrongly, it ignores "X>Y" altogether. This makes
X>Y { /* some properties */ }
a hack for situations where properties should be set for use by some
browsers but not by IE.
Getting back to your observation: if you''re using IE, exactly--the
declaration will have no effect.
Anyone know whether having this ">" is real code or a syntax
error? I''m not sure what that "/" does in the font style, either.
The shorthand "font: 84.5%/122% arial" means the same thing as
font-size: 84.5%;
line-height: 122%;
font-family: arial
Or
the difference in a stylesheet between an html style and a body style.
In this particular case, since the HTML tag is the parent of the BODY
tag, html>body is the way to declare page-wide styles specifically for
non-IE browsers.
Finding a CSS reference that discusses these advanced topics would help
me a great deal. Could someone point me to a book or an on-line
reference that discusses these? Thanks.
关于CSS的一切都在 http://www.w3.org/TR/CSS2/ 。
Everything about CSS is explained at http://www.w3.org/TR/CSS2/.
Joe写道：
如果您在Yahoo.com上显示正在使用的样式，您可以看到一些有趣的东西。例如，这个：
html> body {font：84.5％/ 122％arial;}
我尝试使用这种风格创建一个示例页面，它没有做任何事情。任何人都知道是否有这个>是真正的代码还是语法
错误？我不确定那是什么/也有字体样式。或者
样式表在html样式和正文样式之间的区别。
查找讨论这些高级主题的CSS参考将对我有所帮助。有人能指点我讨论这些书的书或在线
参考吗？谢谢。
If you display the styles in use at Yahoo.com, you can see some
interesting things. For example, this:
html>body{font:84.5%/122% arial;}
I tried creating a sample page using this style and it didn''t do
anything. Anyone know whether having this ">" is real code or a syntax
error? I''m not sure what that "/" does in the font style, either. Or
the difference in a stylesheet between an html style and a body style.
Finding a CSS reference that discusses these advanced topics would help
me a great deal. Could someone point me to a book or an on-line
reference that discusses these? Thanks.
对于初学者：
http://www.w3.org/TR/CSS2/selector.html#child-selectors
http://www.w3.org/TR/CSS21/fonts.html#font-简写
- 先生。 Wilson
For starters:
http://www.w3.org/TR/CSS2/selector.html#child-selectors
http://www.w3.org/TR/CSS21/fonts.html#font-shorthand
--Mr. Wilson
感谢您的回复。虽然W3
的参考文件有点难以排序，但它确实为我提供了我需要继续的
术语。因此我找到了>我自己的符号
CSS参考文章名为A A A A A A />。
根据你的答案，我假设HTML风格和BODY风格，当他们自己使用
时，它们是等价且可以互换的 - 尽管
在雅虎这样看过：
html {...}
body {...}
Thank you for your very helpful response. While that reference at W3
is a little hard to sort through, it does provide me with the
terminology I need to proceed. I thus found the ">" notation in my own
CSS reference under a chapter called "A Look Ahead".
Based on your answer, I assume that the HTML style and BODY style, when
used by themselves, are equivalent and interchangeable -- in spite of
seeing both at Yahoo like this:
html { ... }
body { ... }
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