html - Is there a way to make a radio button's background transparent in Chrome? -

i have had quite lot of fun radio button today trying make background transparent.

i have tried following:

input[type=radio] { background-color:transparent; background-image:none; -webkit-backface-visibility: hidden; } 

it seems chrome issue alone.

i'm own radio buttons using canvas. way can scale them more too.

http://jsfiddle.net/gythf/18/

ctx.save() on line 65 causes opaque white background color in chrome browser