Christof

Great, thanks! Guess I missed stuff esp regarding ARIA (and I let some things out). But let me know what you think is needed and I look into it again.

There are problems with overflow:hidden though. If you position something outside the containing box it would not show up. But as IE11 needs it anyway min-width is not needed and...

You could save the current visible balloon and close it when click on any other balloon element. This way at least there would be a single balloon visible at any...

Looks fine in IE11 for Windows 10 it seems, maybe Win7 problem only?

Do you have links about how such an icon file is build? Generating PNGs is quite simple, ICO may be more difficult though... Thanks for the idea!