我使用的CSS边界顶值的顺序是否重要? [英] Does it matter which order I use for my CSS border-top values?
问题描述
当我看到不同作者使用的 border-top
属性时,他们都说用不同的方式。
When I see the border-top
property used by different authors, they all say to use it a different way.
例如,在 http://www.w3schools.com/css/pr_border -top.asp 按照以下顺序定义:
For example, at http://www.w3schools.com/css/pr_border-top.asp it is defined in this order:
width style color
如果我以另一种方式定义,例如 color
或
If I define in another way, like color
or style
first, will I get problems?
推荐答案
首先,我会遇到问题吗?如果您在使用 border
速记标记时不使用正确的属性顺序。此外,你似乎被不同的属性顺序的定义抛出。
I'm assuming you are asking what the problems could be if you don't use the correct order of properties when using a border
shorthand tag. Additionally you seem to be thrown of by different definitions of the order of properties.
我会引用 W3边框shorthands的CSS参考:
'border'
Value: [ <border-width> || <border-style> || <'border-top-color'> ]
因此只有 $ c> border-top 速记是1.设置宽度,2.样式,3.颜色。 不正确
So the only correct way to use incorrectborder-top
shorthand is to 1. set the width, 2. style, 3. color.
正如保罗所指出的,双杠||表示属性可以以任何顺序出现,因此通常浏览器不会出现问题,无论以什么顺序向他们抛出。
As pointed out by Paul, the double bar "||" means that the properties can appear in any order, so usually browsers don't have a problem no matter what order you throw at them.
但是:我通常看到以 border-top:1px solid red;
的形式的定义 - 但是这可能只是最佳实践,但最终没有关系。
However: I usually see definitions in the form of border-top: 1px solid red;
- but that might just be "best practice" but doesn't matter in the end.
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