Javascript and Jquery expert need

Hello
We are looking for a Javascript and Jquery expert for some work.
We have many task for Javascript and we need someone can do it.

First task is
Download this https://fromsmash.com/task1jquery
Check shedule_base.zip
Then here https://prnt.sc/YdERedoBr0XO make it same as range.html file there https://prnt.sc/smOKYbJZ3b5R (range function should work)
Then make this part white color https://prnt.sc/nvK2ZqLdGyQs like that https://prnt.sc/bFHwGrFvJjfp

Thanks