Customize Calculation field style using CSS

Hi -

I want the fields to be even in width.... I've tried in the design mode and by manually changing the label width.... what am I doing wrong?

PS: the site is not live yet

You can also check my test form http://form.jotformpro.com/form/51643006411947?

I made the changes using the Form Designer.

To customize the label name:

The Calculation widget textbox width:

Hope this help. Let us know if you need further assistance.

Thanks.