seeking clarification of CSS2 spec

Hi

I am just after clarification of the following definition for the value of a
CSS2 property.  This property is defined as having the value:

        [ <border-width> || <border-style> || <color> ] | inherit

My question is, does this type of definition impose an order on the elements
?

I know "12pt solid red" is a valid value, but is "solid red 12pt" ?

Any insight would be appreciated

Thanks

John Farrow