Changes

The affect of the CSS properties is reasonably well defined. An important question to answer is, what part do the SVG 'width', 'height' and 'viewBox' attributes play, and how do they interact with the CSS properties? It has [http://www.w3.org/TR/SVGMobile12/coords.html#InitialViewport become clear] that SVG is to be treated as a [http://www.w3.org/TR/CSS21/conform.html#replaced-element replaced element] in CSS contexts. It has also become clear that the intrinsic dimensions that the SVG must pass to the CSS replaced element algorithm are to [http://www.w3.org/TR/SVGMobile12/coords.html#IntrinsicSizing come from the SVG 'width', 'height' and 'viewBox' attributes].  However, current implementations (e.g. Opera 9.23) treat the 'width' and 'height' attributes as [http://www.w3.org/TR/SVG11/styling.html#AlternativesForStyling presentation attributes] and map them into style (i.e. [http://www.w3.org/TR/CSS21/cascade.html#preshint translate them directly to CSS 'width' and 'height' properties]).