Build a coming soon website that incorporates 3d elements responsive to user actions

We are a fintech startup looking to build a flashy "coming soon" website with a running countdown that incorporates 3d elements responsive to user mouse movement and clicks. The website will be between 4 and 5 total pages. We need it incorporate short clips of app usage into the design. We plan to start sending regular emails out with a link to our website. We want something animated and slick, and we need somebody to work with our existing logos. Please send a few examples of your work, specifically 3d implementation. We were hoping to stay in HTML5 code only(not webGL), we are not sure if this is possible. Thanks.