Build HTML/CSS/JavaScript webpage for Android graphing app

I need a promotional webpage built using HTML, CSS, and JavaScript to advertise my Android program called Graph. Can you please create one using these languages as well as zesty English marketing text that you make up? It would be best if you can say something that makes graphing calculators sound exciting. The Android graphing calculator application is called Graph and the free version is called GraphLite: [login to view URL] These will need heavy promotion with nice graphics and styling. Please let me know why you think you can do this well and if you have done any similar projects.