Create and run a basic HTML/CSS/Javascript page in a webserver

Create the project

1. Open a terminal window.
2. Change directories to your projects directory (for example cd ~/projects).
3. Create a new project with mkdir my-sweet-project.
4. Change directory into the project directory you just created cd my-sweet-project.
5. Create an html, a css, and a Javascript file with touch index.html index.css index.js
6. Open this folder in your editor.

Run the project in a web server

1. Go back to your terminal, make sure you're still in your my-sweet-project directory (or whatever you called it).
2. Serve up the files using python -m SimpleHTTPServer
3. Go to http://localhost:8000 in your web browser.
4. It will be empty, but when you add some html to your page and refresh the page with Command+R it should show up.

Resources

Bootstrap / CSS resources

1. Bootstrap 4 Cheat Sheet - USE THIS
2. Figma - currently free design tool that is helpful with mockups
3. Mozilla Developer Network's Full CSS Reference
4. MDN CSS Homepage
5. Gradient generator

Unrelated resources for folks who asked :)

1. Create React App
2. Node.js, needed for working with React & React Native
3. React Cheat Sheet
4. React Native Getting Started
5. React Native Tutorial