So I use Pen in the last assignment and it sucked. So what other environments are there.
User Agent is:
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36.
Link to the challenge:
You can use something as simple Notepad on windows to create your project, but you will need to be able to post both a working demo of the project and the source files.
Many people use GitHub Pages or surge.sh for static sites like the Responsive Web Design projects.