更改复选框的可检查区域的宽度

I have a CheckBox object and it doesn't have any text associated with it. It is in a Grid which has another coulmn used as the label for it. The whitespace next to the checkbox you can click and it will toggle checkbox I want it just be the area of the actual checkbox and not the white space around it(because the text for it is set to nothing). I have a CheckBox object and it doesn't have an