I have been going through http://support.worldpay.com/support/kb/gg/paymentpagedesigner/content/manageassets.htm#Font in order to try and change the format of texts in Payment form to Upper Camel-Case(text-transform: capitalize). So I modified the css properties for specific elements and uploaded the FLPI_Worldpay_Test_public.css file as mentioned in https://www.youtube.com/watch?time_continue=294&v=xrrn1stqKAA
But its not working, is it by any chance text-transform property is not supported by them ?
For any CSS style property value to be accepted for rendering an element, it is important that it is the last change made to style property. In other words, your CSS might be getting overridden by another CSS file.
You can check if your results are present or not through the console.
This is also how you could experiment with CSS properties.
Also, you can use
text-transform: capitalize !important;to enforce a style.