HTML

• The head element contains information about the webpage.
• The head includes the title.
• The body element represents the visible content shown to the user.
• The body element represent the level of eading a given text block represents to organize a page.
• The body elements repreent the visible image 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.
• A preceding rule, we combined two selectors into a single CSS rule with a comma, allowing the declarations to affect both selectors.

Git

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

JavaScript

• 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.