function PropertyValue(parts, line, col){

    SyntaxUnit.call(this, parts.join(" "), line, col, Parser.PROPERTY_VALUE_TYPE);
    
    /**
     * The parts that make up the selector.
     * @type Array
     * @property parts
     */
    this.parts = parts;
    
}
Represents a single part of a CSS property value, meaning that it represents
just everything single part between ":" and ";". If there are multiple values
separated by commas, this type represents just one of the values.
@param {String[]} parts An array of value parts making up this value.
@param {int} line The line of text on which the unit resides.
@param {int} col The column of text on which the unit resides.
@namespace parserlib.css
@class PropertyValue
@extends parserlib.util.SyntaxUnit
@constructor