Write the CSS & HTML code to exctract our docs from Current RMS

We work with a online system (Current RMS) to manage our asset and bookings of rental material. We would like to adapt the standard CSS & HTML of the system to give our look & feel to the reports/documents we extract from the system (picking list, quotation, etc) We've access to the CSS-Stylesheet / HTML Header, body, footer to implement it. And we also have the name of the fields used by the system (I've been able to make basic documents, but my HTML-knowledge is too limited). It works, but the design I would like to implement requires HTML/CSS expertise. We would like to create or adapt our existing documents : - offer in French - offer in Dutch (same layout, just another field for the data) - pickup list in French - pickup list in Ducth - technical sheet in French - technical sheet in Duth - Shipment doc in French - Shipment doc in Dutch - Invoice in French - Invoice in Dutch Basicly these documents already exists for 70%. Attached, please find an exemple of HTML Body, footer & Stylesheet already working for 80% for the quotations (i will provide all the codes and docs I already have, no reason to recreate everything from A to Z) If you have questions, do not hesitate