Re: [css-om][css3-conditional] spaces, newlines and rule serialization

FWIW, IE9 on my computer:

[1] CSSStyleDeclaration.cssText - delimiters - one declaration

    "left: 10px;"

[2] CSSStyleDeclaration.cssText - delimiters - two declarations

    “left: 10px; right: 20px;"

[3] Summary 

    IE adds a simple semicolon after the last declaration, but a semicolon and a space to separate two declarations. This is what I personnally do in my inline style declarations.

Best regards,
François