Control widths are ignored on the iPhone and the iPad even if the designer has explicitly specified them.
IE8 does not support the CSS3 calc() function. The width of a Section control is set to 98%. If you have a Section inside a Panel that has fewer columns in your form, the right edge does not align.
Radio and Checkbox controls have an extra property called Item Width. You can use this property to change the layout of the options from vertical (one radio/checkbox button below the next) to horizontal. This is useful to save vertical space on long forms. And also useful to improve ease of use for forms with questions that each have the same set of options.
The following properties are no longer supported in