HTML

• HTML structures a webpage.
• The head element contains information about the webpage.
• The body element represents the visible content shown to the user.
• Most of the content in the head element is not visible to the user.

CSS

• CSS stands for Cascading Style Sheets.
• CSS can be added to a webpage 3 ways: inline, internally, and externally.
• A margin indicates how much space we want around the outside of an element.
• A padding indicates how much space we want around the content inside an element.

Git

• Git is a version control software.
• GitHub is a cloud-based hosting service that allows users to collaborate and keep track of projects inside repositories that are stored remotely.
• git status: checks what branch we are curently on
• git checkout -b branch-name: creates a new branch and switches to it

JavaScript

• JavaScript allows for user interaction on a webpage.
• A variable is a named container that allows us to store data in our code.
• Control flow is the order in which a computer executes code in a script.
• JavaScript files are executed from top to bottom. Order matters.