Forms 2.0 Checkmark Size

[Anonymous]

I am creating a simple subscription center. Since the page is not responsive, I increased the checkbox size to it easier to make a selection on a mobile device. But I can't figure out how to increase the size of the checkmark. 

Any ideas?

[Anonymous]

One option is creating a checkbox image and use that as your checkbox

The following post discusses custom input controls:

http://www.thecssninja.com/css/custom-inputs-using-css

The CSS is the key if you are going that route or the adhering to the standard.