HTML

• The head element contains information about the webpage.
• The body element represents the visible content shown to the user.
• The section elements helps divide our code into comprehensible sections

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.
• CSS stands for cascading stylesheets.

Git

• git add: stages the changes you made on local machine ready to commit to remote repo.
• git checkout -b branch-name to make new branch on switch 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.