How to customize file upload button styles using css?

Add file upload to Google Forms without login using Formfacade.Import Google Form Create a new form

Step 1: Open your Google Forms > click on the addon icon > select Formfacade > Select Customize this form > Click on the Proceed button.

Step 2: In the Formfacade customize interface, click on the gear icon next to the form title.

Step 3: Form settings screen will be displayed. Select the advanced tab and add the custom CSS.

Step 4: You can change the background color, border, font, font color etc by applying the css styles to the "addfile" class as shown below.