Text Field Sizing

Hi,
I am trying to resize the fields in a new form I have created, and nothing I do changes it. Currently the input field fills the entire page.

I have added " inputbox" into the css field section in the field layout tab, and created a snippet of code .inputbox into the visiforms css file (edited via the backend button), but the field sizes remain the same.

Could you give me an example of the code which should be added to the visiforms css file to make the field resize work?

Any help greatly appreciated.

Edit: Apologies, this is now resolved. I had a minor typo in the css file causing the problem.

I have the same issue, but I solved it adding the css command "!important" (without quotes) at the end of de css line.
Its really helpfull to have the css at hand.