Html to responsive html

i have 6 html pages and i want to converted to fully responsive html. I will include the css file i made and the javascript with some basic functionality if you want. In order to have something in mind i include a link with the initial desings. You can also tell me how much time you want and when you can start.

Thanks for any questions, just hit me.

Link: https://www.figma.com/file/W5kUaymffnrBCG5NuWi3Mc/xd-Hiking-app-Copy?node-id=0%3A1