Classic Forms/Image Upload Preview: How to hide file name?

Just another quick question: is there any CSS that will hide the file name? I tried a few things but can’t figure it out…

If you're using the classic forms layout then you may inject code to the widget, please try injecting this one to hide the file name: 

span#filename {

    display: none;

}

This guide will help you injecting it to the widget: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-Your-Form 

I hope this helps.