stroke-dasharray

[gwer]

Должно принимать значение none | <dasharray> | inherit, где <dasharray> — «It's a list of comma and/or white space separated <length>s and <percentage>s that specify the lengths of alternating dashes and gaps».

[lahmatiy]

<length-percentage># is actually a list of comma and/or white space separated <length>s and <percentage>s. But I guess for SVG properties length unit can be omitted (see #6).