Fails indicate that the font property specification is invalid in strict mode.

24pt italic = 24pt

24pt italic Arial = 24pt

24pt italic 'Arial' = 24pt Arial

italic 24pt = fails

italic 24pt Arial = 24pt Arial Italic

italic 24pt 'Arial' = 24pt Arial Italic

Arial 24pt italic = fails

'Arial' 24pt italic = fails

Arial italic 24pt = fails

'Arial' italic 24pt = fails