Creating a custom class to adjust width of radio button area

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I'm trying to resize the radio button area on my form. I found the line in the view.css that controls this. But my mind is currently blanking on how to accomplish this.

So here's line 18 of the view.css
.formidable .radio,.formidable .checkbox{float:left;width:45%;}


I can adjust the width directly in the view.css file, but I only want this to modify this particular form and not my other forms on my website. If I adjust the 45% to 95%, I get the desired look, but like I said, I only need this width on this particular form, at least for now. I know how to point it to a custom class, I just can't figure out the right code to insert between the CSS brackets. If someone could help me that would be much appreciated!

Type: Ticket
Status: New
DCBjacob
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