HTML

• The head element contains information about the webpage.
• The body element represents the visible content shown to the user.
• HTML attribute defines additional information about an element and are always defined in the beginning element, never the closing.
• HTML attribute example: lang="en", means language for website is English.

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.
• When using external file one must use a (link) element to connect it.
• (rel) attribue indicates the relationship between the current and linked document resource.
• (href) attribute indicates the location (URL) of the external resource.

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.
• JavaScript files are executed from top to bottom, so order matters.
• After defining a function, we must call it in the code in order for it to execute.