HTML

• The head element contains information about the webpage
• The head element is a container for metadata
• Metadata includes information about the page that is used by the browser
• The body element represents the visible content shown to the user
• Child elements are elements nested inside other elements
• Sections within the body help organize what is being shown to the user

CSS

• Cascading Style Sheets is the language used to describe the presentation of a website created with HTML
• Defines color, aesthetics, visual layout, and organization
• 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

• A free, open source version control system allows developers to collaborate and revert back to previous versions
• git status: checks what branch we are currently on
• git checkout -b branch-name: creates a new branch and switches to it
• git add -A: stages changes to be committed
• git commit -m "message describing change": description of what changes were made
• git pull origin main: verifies the main branch is up to date. Pull = Download
• git push origin branch-name: push = Upload

JavaScript

• Lightweight programming language used to provide logic and interactivity for websites
• Static page becomes interactive
• 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
• An array is a group of related data