HTML

• The head element contains information about the webpage
• The body element represents the visible content shown to the user

CSS

• 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
• Inline styles apply to a specific HTML tag, using a style attribute with a CSS rule to style a particular page element only
• Declarations contain two important components: CSS property we want to apply and the value of the property

Git

• git status: checks what branch we are currently on
• git checkout -b branch-name: creates a new branch and switches to it

JavaScript

• Array is a single variable used to hold a group of data
• Function is a set of instructions that tells computer what to do
• Control flow is the order in which computer executes code in script
• variable is a named container that allows us to store data in code