浮点长度值对像素单位有意义吗？ [英] Does floating point length value make sense on pixel unit?

问题描述

当我尝试为：

px'：pixels; 1 px 等于

$中的1 / 96th b
$ b

13.1px 将与 0.1364in 相同，其中 13px 会 0.1354in 。

这就是说，你应该使用我的意见中的相对值，而 pt 表示整体底座尺寸。

When I try write stylish CSS for forums.asterisk.org site, I saw they use floating point length value on pixel unit, for example: font-size: 13.1px;.

As far as I known, pixel is the smallest unit in screen, so does floating point length value make sense on pixel unit？

Screenshot

解决方案

It's fine, the CSS recommendation allows numbers (not only integers) as values for pixels. Note that px is actually defined in terms of in in the recommendation:

‘px’: pixels; 1px is equal to 1/96th of 1in

All in all 13.1px will be the same as 0.1364in, where 13px would be 0.1354in. The difference is small, but noticeable.

That being said, you should use relative values in my opinion instead, and pt for the overall base size.

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