How can I set -fx-max-width to USE_PREF_SIZE in JavaFX css?

I am writing a JavaFX-8 application and was wondering if it is possible to set the min or max value of (for example) a button USE_PREF_SIZE

using css. The class Region

defines USE_PREF_SIZE

how Double.NEGATIVE_INFINITY

, but how to set negative infinity in css? The JavaFX Reference Manual defines -fx-min-width, -fx-pref-width, -fx-max-width

how <number>

and <number>

is defined by the following regex. [+|-]? [[0-9]+|[0-9]*"."[0-9]+]

So maybe this is not possible?

I tried (for fun) assigning a java path to negative infinity -1.0/0.0

and the css-parser accepted the value, but without the expected effect. Can someone explain why it doesn't print a warning or error?

I already know how to set USE_PREF_SIZE

by code and I also know that there is a hack to set min, pref and max to the same value, but I want to do it in a css file in a dynamic way.

Thank you in advance