How to use calc() inside another function

问题

Is it possible to use calc() inside of a CSS function like transform or translate? I cannot seem to get it working. Here is a demo so you guys can play around:

http://jsfiddle.net/qdJwY/1/

回答1:

You can use calc() wherever you can use a length based value in CSS. The example you have provided does work, but actually adds up to 0. Here is a slightly changed demo to illustrate: http://jsfiddle.net/joshnh/6ydR3/

Also, make sure to list the unprefixed version last.

Mixing percentages with other value types in the calc() function within a transform doesn't seem to work at all in Chrome. I'll report this as a bug.

UPDATE: This has been reported as a bug here: https://code.google.com/p/chromium/issues/detail?id=150054

回答2:

It works: http://jsfiddle.net/qdJwY/2/

(edit: Tested in Firefox only)

In your example it just so happens that 100% = 200px, so you translated by zero.

来源：https://stackoverflow.com/questions/12417831/how-to-use-calc-inside-another-function