[showtext] 2 styles in one showtext action bug

Hi im trying to use 2 styles in one showtext action like this:

onhover="showtext([font style='font-size:20px;']Name:xxx[br][font style='font-size:10px;']Email: xxx [br]Phone: xxxxx);"

but it added quotation marks at the begin and end:

does anyone have idea what is causing this problem?
thanks

*edit
oh, i think i found where is the problem-apostrophes
documentation says(for html5):

[font style='font-size:10px;']smaller text[/font]

but then, showtext action is showing also apostrophes
so i deleted them and it works great

i guess it is just typo error in documentation or some kind of bug? can someone confirm?

*edit2
i think there is another bug or error
if i use this formating, and in text is comma like in code

[code][font style='font-size:10px;']smaller, text[/font]

it breaks formating- it is possible to use commas in this type of formating?