At 2003-10-19 21:07 +0200, Stefan Hermann wrote:
I have some questions concerning the property resolution when using
epressions:
What is the result of calling the function "max" (of the core function
library) with percentage arguments ( e.g. max(100%,120%) ) when
a) calling it while evaluating the font-size property
b) calling it while evaluating the border-top-width property
I observe in the first Note in section 5.11 that a <percentage> value that
is not interpreted as "auto" is a valid <length> value. Section 5.10.1
states that both arguments to max() must have the same unit power, which is
true for two <length> arguments because they have a unit power of one.
The font-size= property is inherited, so the resulting length would be
relative to the inherited font-size value.
The border-top-width= property is not inherited, but the specification does
not allow the percentage data type to be used for this property. Where
percentages are allowed for non-inherited properties, explicit
documentation covers the interpretation of what a percentage means.
So I'm assuming that for font-size= you would get 1.2em and for
border-top-width it would be ignored or throw an error.
But I'm only a stylesheet writer, not an engine implementer, so it might be
best to hear definitively from a member of the committee.
I hope this helps.
............................ Ken
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