- Individual label widths are also not reflected when I preview the form. Can you take a look and see what might be the problem?

- Individual label widths are also not reflected when I preview the form. Can you take a look and see what might be the problem?

What do you mean by "Individual label widths are also not reflected when I preview the form"? I just cloned your form, and the edit view looks the same as the live preview. Please share a screenshot to illustrate better what you mean: https://www.jotform.com/help/438-How-to-Post-Screenshots-to-Our-Support-Forum 

Here's what I am seeing in the CSS editor:

And here's what I see in the live preview:

Default form styles have higher priority, to fix this add the !important statement to your CSS:

#label_313 {
width : 350px !important;
}

Aha, thank you, Mike!