Currently, Make Things Now: Blocks requires Chrome, Firefox or Safari on a non-touch device. We're working on support for both IE and touch devices and we will be releasing this soon!
Until then, if you have any questions or suggestions, please get in touch!
---- I'm on a windows 7 machine running Chrome.
Once I manually disabled your blocking divs, and enabled the content div, I got the UI to display, and I think I understand what your app does...
It's a minecraft style voxel modeller with STL export capabilities, geared toward 3d printing! Cool stuff! You gotta disable all that target platform checking crap and just let it run on anything, and then see what doesn't work.
That said, it was throwing exceptions internally, so I never actually got to drop a voxel... I stopped short of trying to debug your emscripten stuff..
Edit: In your STL export, are you only exporting externally visible faces? Also, does your 3d printing integration allow printing on the fly? Curious how you are tackling that... Ive been kinda thinking about an app like this to make 3d printing more interactive.. it would be really neat to be able to draw and print stuff one layer at a time interactively! like... doing pixel art one layer at a time, and having it print each layer as you move to the next... Cool stuff! Let me know if you're looking for someone to collaborate with!