HTML

• The head element contains information about the webpage.
• The body element represents the visible content shown to user.
• The title element sets the title of the webpage
• The style element defines the CSS styles associated with a website
• The base element defines the base URL for a website
• The meta element defines metadata such as the character set, description, keywords, authors, and viewport.
• The charset element sets our character coding
• The script element embeds client side scripts in the HTML document

CSS

• A margin indicates how much space we around the outside of the element.
• A padding indicates how much space we want around the content inside the element.
• Class attributes allow us to share a CSS rule to any element we choose by assigning the rule to a class attribute with a class selector.

Git

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

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.
• To execute a function we must call it in our code.