Radio Button label not perfectly vertically aligned

Hello,

Have a look at this fiddle please: https://jsfiddle.net/rtacsltng/gtbrq6qr/1/

Labels are not perfectly aligned to the radio buttons: their respective center should be aligned, which is not the case with Firefox (44) and Safari on OSX El Capitan and on IE and Chrome on Windows 8. The text is a bit above what it should be, this is particularly visible with upper case labels.

Note that it works correctly on Windows 7 with Firefox and IE.

Thanks