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IE 6 and below
Use * html {} to select the html element.
IE 7 and below
Use *+html, * html {} to select the html element.
IE 7 only
Use *+html {} to select the html element.
IE 7 and modern browsers only
Use html>body {} to select the body element.
Modern browsers only (not IE 7)
Use html>/**/body {} to select the body element.
