A simple game in HTML, CSS, JavaScript

I need a simple game design in HTML, CSS, JavaScript. The project is not particularly complicated (two levels, the block through which we will die / win, jumping, time counter). Those interested please contact me - I will provide full documentation with the requirements. Part of the code is already provided - some parts need to be added. I would like to receive the whole in two slightly different versions (different level layout, different block colors). I need work for Saturday, July 4, 2020.