HTML

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

CSS

• Selector: defines elements or attributes to which rules (declarations) will apply
• Declaration: consists of the CSS property to be applied, and the value of that property
• A margin indicates how much space we want around the outside of an element
• A padding indicates how much space we want around the inside of an element

Git

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

JavaScript

• JavaScript goes in the body section, rather than the head since it contains information about how the content should behave and flow
• 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.