The NodeJS live-server package runs a temporary server displaying any HTML/CSS/JS resources in the current folder. It automatically reloads the page in your browser when any of these files change.
- Verify that Node.js is installed. If you see anything when you run
which npmin a terminal, it is. If not, follow the instructions at nodejs.org to install. - Install live-server:
npm install -g live-server - Move your terminal to where your pages live:
cd <path-to-content> - Start the server:
live-server . - Open localhost:8080 in a browser.

Try using yarn instead of npm:
$ yarn add [email protected]Of course, you must also have yarn installed. You can do this using brew or npm or a couple other ways (on Yarn's website):
$ npm install --global yarnor
$ brew install yarn