layout issue - checkbox

layout issue - checkbox

Hi,

I'm building a form with text inputs, checkbox and submit. Everything is fine
so far except the checkbox width. I tested it on different mobile devices and
it has always a different width. Acutally I need each element with a width of
100%. Does anyone know why there could be a problem with this element?

I checked also jquery mobile site with the demo sites and also here have the
checkboxes different width :(


thx for hints

TC