Robohelp Responsive

Hi,

   I have a few queries regarding Robohelp 11 Responsive HTML 5 Output:

1. Is Output supported by IE 9 and above browsers?
2. What is the font size that we should use for body text of a topic so that it is readable in desktop, tablet and phone athe same time?
3. Can a sample help be shared that is generated as responsive html?
4. Are there any guidelines for developing help using responsive html 5 ?
5. How to adjust the size of the logo? I need to insert a logo with a latrger size. But the logo placeholder will take a smaller size. How to adjust it?
6. How to adjust the size of the images of the contents, glossary, index-i am unable to resize?

Please can you help with my queries?