Create some games around images and other media in HTML

[lizTheDeveloper]

I've found a few questions that have been proposed that don't fit the fill-the-gap format, but they do fit game formats!

I think a game around images formats and where they're supported would be good:

Select the web image formats that support transparency:

+ PNG
+ GIF
+ SVG
- JPG
- PDF
- PSD
- AIF

Also a tetris game around which media formats (gif, webm, flash, ogg, etc) are supported in different browsers / environments would be good 👍