Write a CSS stylesheet for rendering XML quiz cards. The XML document provides a link to a stylesheet called '[login to view URL]' which you should provide. The stylesheet should display the quizcard in a background color different to that of the browser window. The quiz card should occupy roughly 80% of the width of the browser window and should display the card title, centered, above all of the entries on the card, each of which should be displayed in its own identifiably separate box. For each entry display the subject towards the top right corner of the entry's box and display the question aligned centrally in the box followed by a question mark. The answer should be hidden below the question in a silver box, centered with respect to the entry's box. The answer should only be revealed when the user holds the mouse button down on the silver box which contains the answer.
## Deliverables
1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
2) Fully commented code
3) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):
a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.
b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.
3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).
## Platform
firefox